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    <oef:RiskReturnHeading contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-299">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Clean Energy ETF 
    
   </oef:RiskReturnHeading>
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     Investment Objective 
       
    
   </oef:ObjectiveHeading>
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     Fidelity&#xae;  
     Clean Energy ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Clean Energy Index 
     &#x2120; 
     . 
       
    
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     Fee Table 
       
    
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     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
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     Shareholder fees 
       
    
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      decimals="0"
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      unitRef="usd">0</oef:ShareholderFeeOther>
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     Annual Operating Expenses 
       
    
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      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
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      id="ixv-74037"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000073597_Cid_C000230602"
      decimals="6"
      id="ixv-74038"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
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      decimals="6"
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      unitRef="pure">0.0039</oef:ExpensesOverAssets>
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     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
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      contextRef="Pid_S000073597_Cid_C000230602"
      decimals="0"
      id="ixv-74041"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000073597_Cid_C000230602"
      decimals="0"
      id="ixv-74042"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000073597_Cid_C000230602"
      decimals="0"
      id="ixv-74043"
      unitRef="usd">493</oef:ExpenseExampleYear10>
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     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
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     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       
       41 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
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      decimals="4"
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      unitRef="pure">0.41</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-473">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
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      Normally investing at least 80% of assets in securities included in the Fidelity Clean Energy IndexSM and in depositary receipts representing securities included in the index. 
      
     The Fidelity Clean Energy Index SM &#160;is designed to reflect the performance of a global universe of companies across the market capitalization spectrum that distribute, produce or provide technology or equipment to support the production of energy from solar, wind, hydrogen and other renewable sources. 
     The Fidelity Clean Energy Index SM is constructed using Fidelity's rules-based proprietary index methodology. The index methodology identifies and ranks stocks for inclusion in the index based on company revenues and proprietary natural language processing (NLP) scores. Stocks of companies are first selected based on market share and revenues tied to one or a combination of the following designated business activity categories, subject to thematic quality screens: clean energy production and distribution and clean energy technology manufacturing. 
     After initial screens are applied, stocks are selected for inclusion in the index based on market share ranked by dollar revenue and a thematic relevancy score derived from a combination of revenue related to designated business activities and NLP scores. NLP is used to analyze text-based documents to identify companies with relevant keywords. 
     Stocks of companies with greater than 50% of their total revenue from one or a combination of designated business activities or at least 5% market share (based on total revenues in designated business activities) will comprise 85% or more of the index. Stocks not meeting these criteria may also be included in the index but are generally capped at lower weights. Each stock is weighted by adjusted market capitalization and capped under the methodology. 
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
     Primarily using replication; however, the fund may or may not hold all of the securities in the index. 
    
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      Stock Market Volatility. 
      
     Stock markets and, as a result, stock market indexes, are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
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      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_CleanEnergyCompaniesMember"
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      Clean Energy Companies. 
      
     Clean energy companies are subject to various risks, including fluctuations in commodity prices and/or interest rates, obsolescence of existing technology, short product cycles, changes in governmental and environmental regulations and enforcement policies, changes in U.S. and foreign government policies, including tax incentives and government subsidies, reduced availability of clean energy sources or other commodities, and extreme weather or other natural disasters. Although the fund's underlying index uses a rules-based proprietary index methodology that seeks to identify such companies, there is no guarantee that this methodology will be successful. 
    
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    <oef:RiskTextBlock
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      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
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      id="ixv-544">
     
       
      
      Sector Exposure. 
      
     In seeking to track the performance of its underlying index, the fund will generally have significant exposure to one or more industries, groups of related industries, or sectors, and the fund's performance may be impacted by events affecting those industries or sectors. 
     The utilities industries can be significantly affected by government regulation, interest rate changes, financing difficulties, supply and demand of services or fuel, intense competition, natural resource conservation, and commodity price fluctuations. 
     Industrial industries can be significantly affected by general economic trends, changes in consumer sentiment and spending, commodity prices, legislation, government regulation and spending, import controls, worldwide competition, and liability for environmental damage, depletion of resources, and mandated expenditures for safety and pollution control. 
     The information technology industries can be significantly affected by obsolescence of existing technology, short product cycles, falling prices and profits, competition from new market entrants, and general economic conditions. In addition, information technology industries can be affected by the loss or impairment of intellectual property rights. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_GeographicExposureToEuropeMember"
      id="ixv-559">
     
       
      
      Geographic Exposure to Europe. 
      
     Because the fund invests a meaningful portion of its assets in Europe, the fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-568">
     
       
      
       
        Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-580">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_CorrelationToIndexMember"
      id="ixv-595">
     
       
      
      Correlation to Index. 
      
     The performance of the fund and its  
       benchmark index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_PassiveManagementRiskMember"
      id="ixv-607">
     
       
      
      Passive Management Risk. 
      
     The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's benchmark index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. 
     The fund will be concentrated to approximately the same extent that the fund's benchmark index concentrates in the securities of issuers in a particular industry. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-622">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-631">
     
       
      
      Small- and Mid-Cap Investing. 
      
     The value of securities of small to medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-640">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073597_contentCd_CEE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-648">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-655">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-660">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-665"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-672"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-678"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-683">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_2022"
      decimals="INF"
      id="ixv-74045"
      unitRef="pure">-0.1158</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_2023"
      decimals="INF"
      id="ixv-74046"
      unitRef="pure">-0.1961</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_2024"
      decimals="INF"
      id="ixv-74047"
      unitRef="pure">-0.2078</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_2025"
      decimals="INF"
      id="ixv-74048"
      unitRef="pure">0.5258</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-777">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000073597_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74049"
      unitRef="pure">0.2480</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-787">2025-09-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-792">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000073597_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74050"
      unitRef="pure">-0.2316</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-803">2023-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-808">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000073597_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74051"
      unitRef="pure">0.0539</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-818">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-823">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-828">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-831"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-838"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000073597_contentCd_CEE-PRO" id="ixv-843"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073597_Cid_C000230602_ReturnBeforeTaxes_01"
      id="ixv-881">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74052"
      unitRef="pure">0.5258</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073597AAR_A_RBT_loc"
      unitRef="pure">-0.0386</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073597_Cid_C000230602_AfterTaxesOnDistributions_01"
      id="ixv-895">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74054"
      unitRef="pure">0.5225</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073597AAR_A_ATD_loc"
      unitRef="pure">-0.0401</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073597_Cid_C000230602_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-909">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74056"
      unitRef="pure">0.3158</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Cid_C000230602_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073597AAR_A_ATDS_loc"
      unitRef="pure">-0.0283</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073597_Indexid_IXV7K_contentCd_CEE-PRO_01"
      id="ixv-924">
         Fidelity Clean Energy Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Indexid_IXV7K_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74058"
      unitRef="pure">0.5265</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Indexid_IXV7K_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74059"
      unitRef="pure">-0.0336</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073597_Indexid_MS159_contentCd_CEE-PRO_01"
      id="ixv-944">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Indexid_MS159_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74060"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073597_Indexid_MS159_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74061"
      unitRef="pure">0.1087</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000073597_Cid_C000230602" id="ixv-976">2021-10-05</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1013">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Cloud Computing ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1022">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1027">
     
       
      
       
     Fidelity&#xae;  
     Cloud Computing ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Cloud Computing Index 
     &#x2120; 
     . 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1036">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1042">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1053">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000073598_contentCd_CEE-PRO"
      decimals="0"
      id="ixv-74062"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1068">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="6"
      id="ixv-74063"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="6"
      id="ixv-74064"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="6"
      id="ixv-74065"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="6"
      id="ixv-74066"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1115">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="0"
      id="ixv-74067"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="0"
      id="ixv-74068"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="0"
      id="ixv-74069"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000073598_Cid_C000230603"
      decimals="0"
      id="ixv-74070"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1172">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1177">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       
       39 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000073598_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74071"
      unitRef="pure">0.39</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1187">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1192">
     
       
      
      Normally investing at least 80% of assets in securities included in the Fidelity Cloud Computing IndexSM and in depositary receipts representing securities included in the index. 
      
     The Fidelity Cloud Computing Index SM &#160;is designed to reflect the performance of a global universe of companies across the market capitalization spectrum that provide products or services enabling the increased adoption of cloud computing, characterized by the delivery of computing services over the internet.  
     The Fidelity Cloud Computing Index SM is constructed using Fidelity's rules-based proprietary index methodology. The index methodology identifies and ranks stocks for inclusion in the index based on company revenues and proprietary natural language processing (NLP) scores. Stocks of companies are first selected based on market share and revenues tied to one or a combination of the following designated business activity categories, subject to thematic quality screens: cloud infrastructure, cloud platforms, and cloud software providers. 
     After initial screens are applied, stocks are selected for inclusion in the index based on market share ranked by dollar revenue and a thematic relevancy score derived from a combination of revenue related to designated business activities and NLP scores. NLP is used to analyze text-based documents to identify companies with relevant keywords.  
     Stocks of companies with greater than 50% of their total revenue from one or a combination of designated business activities or at least 5% market share (based on total revenues in designated business activities) will comprise 85% or more of the index. Stocks not meeting these criteria may also be included in the index but are generally capped at lower weights. Each stock is weighted by adjusted market capitalization and capped under the methodology. 
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
     Primarily using replication; however, the fund may or may not hold all of the securities in the index. 
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-1225">
     
       
      
      Stock Market Volatility. 
      
     Stock markets and, as a result, stock market indexes, are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_CloudComputingCompaniesMember"
      id="ixv-1234">
     
       
      
      Cloud Computing Companies. 
      
     Cloud computing companies are subject to various risks, including those associated with limited operating history, product lines, markets, financial resources or personnel, changes in business cycles, intense competition, potentially rapid product obsolescence, disruptions in service, changes in regulation, and cybersecurity attacks and other types of theft. Although the fund's underlying index uses a rules-based proprietary index methodology that seeks to identify such companies, there is no guarantee that this methodology will be successful. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_ForeignExposureMember"
      id="ixv-1243">
     
       
      
      Foreign Exposure. 
      
     Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_SectorExposureMember"
      id="ixv-1254">
     
       
      
      Sector Exposure. 
      
     In seeking to track the performance of its underlying index, the fund will generally have significant exposure to one or more industries, groups of related industries, or sectors, and the fund's performance may be impacted by events affecting those industries or sectors. 
     The information technology industries can be significantly affected by obsolescence of existing technology, short product cycles, falling prices and profits, competition from new market entrants, and general economic conditions. In addition, information technology industries can be affected by the loss or impairment of intellectual property rights. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-1265">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-1276">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_CorrelationToIndexMember"
      id="ixv-1291">
     
       
      
      Correlation to Index. 
      
     The performance of the fund and its  
       benchmark index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_PassiveManagementRiskMember"
      id="ixv-1303">
     
       
      
      Passive Management Risk. 
      
     The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's benchmark index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. 
     The fund will be concentrated to approximately the same extent that the fund's benchmark index concentrates in the securities of issuers in a particular industry. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-1318">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-1327">
     
       
      
      Small- and Mid-Cap Investing. 
      
     The value of securities of small to medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-1336">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073598_contentCd_CEE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-1344">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1351">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1356">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1361"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1368"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1374"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1379">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_2022"
      decimals="INF"
      id="ixv-74072"
      unitRef="pure">-0.4107</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_2023"
      decimals="INF"
      id="ixv-74073"
      unitRef="pure">0.5239</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_2024"
      decimals="INF"
      id="ixv-74074"
      unitRef="pure">0.2193</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_2025"
      decimals="INF"
      id="ixv-74075"
      unitRef="pure">0.0839</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1471">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000073598_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74076"
      unitRef="pure">0.1960</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1481">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1486">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000073598_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74077"
      unitRef="pure">-0.2387</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1497">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1502">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000073598_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74078"
      unitRef="pure">0.5001</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1512">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1517">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1522">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1525"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1532"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000073598_contentCd_CEE-PRO" id="ixv-1537"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073598_Cid_C000230603_ReturnBeforeTaxes_01"
      id="ixv-1575">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74079"
      unitRef="pure">0.0839</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073598AAR_A_RBT_loc"
      unitRef="pure">0.0417</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073598_Cid_C000230603_AfterTaxesOnDistributions_01"
      id="ixv-1588">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74081"
      unitRef="pure">0.0838</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073598AAR_A_ATD_loc"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073598_Cid_C000230603_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-1601">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74083"
      unitRef="pure">0.0497</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Cid_C000230603_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073598AAR_A_ATDS_loc"
      unitRef="pure">0.0322</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073598_Indexid_IXV7Q_contentCd_CEE-PRO_01"
      id="ixv-1615">
         Fidelity Cloud Computing Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Indexid_IXV7Q_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74085"
      unitRef="pure">0.0877</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Indexid_IXV7Q_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74086"
      unitRef="pure">0.0452</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073598_Indexid_MS159_contentCd_CEE-PRO_01"
      id="ixv-1634">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Indexid_MS159_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74087"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073598_Indexid_MS159_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74088"
      unitRef="pure">0.1087</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000073598_Cid_C000230603" id="ixv-1666">2021-10-05</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1703">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Crypto Industry and Digital Payments ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1712">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1717">
     
       
      
       
     Fidelity&#xae;  
     Crypto Industry and Digital Payments ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Crypto Industry and Digital Payments Index 
     &#x2120; 
     . 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1726">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1732">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1743">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000075902_contentCd_CEE-PRO"
      decimals="0"
      id="ixv-74089"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1758">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="6"
      id="ixv-74090"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="6"
      id="ixv-74091"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="6"
      id="ixv-74092"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="6"
      id="ixv-74093"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1805">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="0"
      id="ixv-74094"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="0"
      id="ixv-74095"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="0"
      id="ixv-74096"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075902_Cid_C000235243"
      decimals="0"
      id="ixv-74097"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1862">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1867">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       
       59 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000075902_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74098"
      unitRef="pure">0.59</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1877">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-1882">
     
       
      
      Normally investing at least 80% of assets in equity securities included in the Fidelity Crypto Industry and Digital Payments IndexSM and in depositary receipts representing securities included in the index. 
      
     The Fidelity Crypto Industry and Digital Payments Index SM is designed to reflect the performance of a global universe of companies engaged in activities related to cryptocurrency, related blockchain technology, and digital payments processing.&#160; &#160; 
     Cryptocurrency companies include those involved in cryptocurrency mining or provide financial services to support cryptocurrency issued on a blockchain such as custody, trading, asset management and other services.&#160; 
     Blockchain technology companies include those that distribute or manufacture infrastructure, hardware or software that supports cryptocurrency mining activities and/or the encryption and integrity of cryptocurrency. 
     Digital payments processing companies include those that facilitate payment activities through processes and protocols such as Electronic Funds Transfer (EFT), including Automated Clearing House (ACH), and other traditional payment information services. 
     The fund will not invest in digital assets (including cryptocurrencies) directly, or indirectly through the use of digital asset derivatives. The fund also will not invest in initial coin offerings. Therefore, the fund is not expected to track the price movement of any digital asset. The fund may, however, have indirect exposure to digital assets by virtue of its investments in cryptocurrency companies that use one or more digital assets as part of their business activities or that hold digital assets as proprietary investments. 
     The Fidelity Crypto Industry and Digital Payments Index SM is constructed using Fidelity's rules-based proprietary index methodology. The index methodology identifies and ranks stocks for inclusion in the index based on company revenues and proprietary natural language processing (NLP) scores. Stocks of cryptocurrency companies and blockchain technology companies are first selected based on market share.&#160; Stocks included in the index are selected based on revenues tied to one or a combination of the following designated business activity categories: cryptocurrency mining, crypto-related financial services, related blockchain technologies, and digital payments processing. 
     After initial screens are applied, stocks of cryptocurrency companies and blockchain technology companies are selected for inclusion in the index based on market share ranked by dollar revenue and thematic relevancy scores, and stocks of digital payments processing companies are selected for inclusion in the index based on revenues ranked by average daily volumes. Thematic relevancy scores are derived from a combination of revenue related to designated business activities and NLP scores. NLP is used to analyze text-based documents to identify companies with relevant keywords. 
     Stocks of companies with greater than 50% of their total revenue tied to one or a combination of designated business activities or at least 5% market share (based on total revenues in designated business activities) will comprise 85% or more of the index. 
     Stocks not meeting this criteria may also be included in the index but are generally capped at lower weights. Each stock is weighted based on modified average daily volume metrics subject to caps.  
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
     Primarily using replication; however, the fund may or may not hold all of the securities in the index. 
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-1930">
     
       
      
      Stock Market Volatility. 
      
     Stock markets and, as a result, stock market indexes, are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_CryptocurrencyAndBlockchainCompaniesMember"
      id="ixv-1939">
     
       
      
      Cryptocurrency and Blockchain Companies. 
      
     Cryptocurrency and blockchain companies are subject to various risks, including inability to develop digital asset applications or to capitalize on those applications, theft, loss, or destruction of cryptographic keys, the possibility that digital asset technologies may never be fully implemented, cybersecurity risk, conflicting intellectual property claims, and inconsistent and changing regulations. Although the fund's underlying index uses a rules-based proprietary index methodology that seeks to identify such companies, there is no guarantee that this methodology will be successful. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_DigitalPaymentsProcessingCompaniesMember"
      id="ixv-1948">
     
       
      
      Digital Payments Processing Companies. 
      
     Digital payments processing companies are subject to various risks, including those associated with intense competition, changes in regulation, economic conditions, deterioration in credit markets, impairment of intellectual property rights, disruptions in service, and cybersecurity attacks and other types of theft. Although the fund's underlying index uses a rules-based proprietary index methodology that seeks to identify such companies, there is no guarantee that this methodology will be successful. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_ForeignExposureMember"
      id="ixv-1957">
     
       
      
      Foreign Exposure. 
      
     Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_SectorExposureMember"
      id="ixv-1968">
     
       
      
      Sector Exposure. 
      
     In seeking to track the performance of its underlying index, the fund will generally have significant exposure to one or more industries, groups of related industries, or sectors, and the fund's performance may be impacted by events affecting those industries or sectors. 
     The information technology industries can be significantly affected by obsolescence of existing technology, short product cycles, falling prices and profits, competition from new market entrants, and general economic conditions. In addition, information technology industries can be affected by the loss or impairment of intellectual property rights. 
     The financials industries are subject to extensive government regulation, can be subject to relatively rapid change due to increasingly blurred distinctions between service segments, and can be significantly affected by availability and cost of capital funds, changes in interest rates, the rate of corporate and consumer debt defaults, and price competition. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-1981">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-1992">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_CorrelationToIndexMember"
      id="ixv-2007">
     
       
      
      Correlation to Index. 
      
     The performance of the fund and its  
       benchmark index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_PassiveManagementRiskMember"
      id="ixv-2019">
     
       
      
      Passive Management Risk. 
      
     The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's benchmark index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. 
     The fund will be concentrated to approximately the same extent that the fund's benchmark index concentrates in the securities of issuers in a particular industry. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-2034">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-2043">
     
       
      
      Small- and Mid-Cap Investing. 
      
     The value of securities of small to medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_RiskNondiversifiedStatusMember"
      id="ixv-2052">
     
       
     In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-2057">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075902_contentCd_CEE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-2065">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2072">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2077">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2082"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2089"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2095"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2100">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_2023"
      decimals="INF"
      id="ixv-74099"
      unitRef="pure">1.6575</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_2024"
      decimals="INF"
      id="ixv-74100"
      unitRef="pure">0.1771</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_2025"
      decimals="INF"
      id="ixv-74101"
      unitRef="pure">0.1962</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2188">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075902_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74102"
      unitRef="pure">0.7390</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2198">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2203">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075902_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74103"
      unitRef="pure">-0.2544</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2214">2025-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2219">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000075902_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74104"
      unitRef="pure">0.1034</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2229">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2234">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2239">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2242"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2249"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000075902_contentCd_CEE-PRO" id="ixv-2254"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075902_Cid_C000235243_ReturnBeforeTaxes_01"
      id="ixv-2292">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74105"
      unitRef="pure">0.1962</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000075902AAR_A_RBT_loc"
      unitRef="pure">0.1211</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075902_Cid_C000235243_AfterTaxesOnDistributions_01"
      id="ixv-2305">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74107"
      unitRef="pure">0.1916</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000075902AAR_A_ATD_loc"
      unitRef="pure">0.1184</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075902_Cid_C000235243_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-2318">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74109"
      unitRef="pure">0.1169</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Cid_C000235243_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000075902AAR_A_ATDS_loc"
      unitRef="pure">0.0943</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075902_Indexid_IXV46_contentCd_CEE-PRO_01"
      id="ixv-2332">
         Fidelity Crypto Industry and Digital Payments Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Indexid_IXV46_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74111"
      unitRef="pure">0.1962</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Indexid_IXV46_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74112"
      unitRef="pure">0.1239</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075902_Indexid_MS159_contentCd_CEE-PRO_01"
      id="ixv-2351">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Indexid_MS159_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74113"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075902_Indexid_MS159_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74114"
      unitRef="pure">0.1297</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075902_Cid_C000235243" id="ixv-2383">2022-04-19</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2420">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae;  
       Electric Vehicles and Future Transportation ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2431">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2436">
     
       
      
       
     Fidelity&#xae;  
     Electric Vehicles and Future Transportation ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Electric Vehicles and Future Transportation Index 
     &#x2120; 
     . 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2445">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2451">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2462">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000073600_contentCd_CEE-PRO"
      decimals="0"
      id="ixv-74115"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2477">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="6"
      id="ixv-74116"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="6"
      id="ixv-74117"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="6"
      id="ixv-74118"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="6"
      id="ixv-74119"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2524">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="0"
      id="ixv-74120"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="0"
      id="ixv-74121"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="0"
      id="ixv-74122"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000073600_Cid_C000230605"
      decimals="0"
      id="ixv-74123"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2581">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2586">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       
       51 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000073600_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74124"
      unitRef="pure">0.51</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2596">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2601">
     
       
      
      Normally investing at least 80% of assets in securities included in the Fidelity Electric Vehicles and Future Transportation IndexSM and in depositary receipts representing securities included in the index. 
      
     The Fidelity Electric Vehicles and Future Transportation Index SM is designed to reflect the performance of a global universe of companies across the market capitalization spectrum engaged in the production of electric and/or autonomous vehicles and their components, technology, or energy systems or engaged in other initiatives that aim to change the future of transportation. 
     The Fidelity Electric Vehicles and Future Transportation Index SM is constructed using Fidelity's rules-based proprietary index methodology. The index methodology identifies and ranks stocks for inclusion in the index based on company revenues and proprietary natural language processing (NLP) scores. Stocks of companies are first selected based on market share and revenues tied to one or a combination of the following designated business activity categories, subject to thematic quality screens: future transportation technologies and future transportation enablers.&#160; 
     After initial screens are applied, stocks are selected for inclusion in the index based on market share ranked by dollar revenue and a thematic relevancy score derived from a combination of revenue related to designated business activities and NLP scores. NLP is used to analyze text-based documents to identify companies with relevant keywords.&#160; 
     Stocks of companies with greater than 50% of their total revenue from one or a combination of designated business activities or at least 5% market share (based on total revenues in designated business activities) will comprise 85% or more of the index. Stocks not meeting these criteria may also be included in the index but are generally capped at lower weights. Each stock is weighted by adjusted market capitalization and capped under the methodology.&#160; &#160; 
     Stocks chosen for inclusion in the index represent both future technologies companies (approximately 25 stocks) and future transportation enabler companies (approximately 25 stocks). 
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
     Primarily using replication; however, the fund may or may not hold all of the securities in the index. 
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-2640">
     
       
      
      Stock Market Volatility. 
      
     Stock markets and, as a result, stock market indexes, are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_ElectricVehiclesAndFutureTransportationCompaniesMember"
      id="ixv-2649">
     
       
      
      Electric Vehicles and Future Transportation Companies. 
      
     Electric vehicles and future transportation companies are subject to various risks, including those associated with limited product lines, markets, financial resources or personnel, intense competition, production delays, changes in governmental regulation, and litigation based on product liability claims. Although the fund's underlying index uses a rules-based proprietary index methodology that seeks to identify such companies, there is no guarantee that this methodology will be successful. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-2658">
     
       
      
      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_SectorExposureMember"
      id="ixv-2673">
     
       
      
      Sector Exposure. 
      
     In seeking to track the performance of its underlying index, the fund will generally have significant exposure to one or more industries, groups of related industries, or sectors, and the fund's performance may be impacted by events affecting those industries or sectors. 
     The consumer discretionary industries can be significantly affected by the performance of the overall economy, interest rates, competition, consumer confidence and spending, and changes in demographics and consumer tastes. 
     Industrial industries can be significantly affected by general economic trends, changes in consumer sentiment and spending, commodity prices, legislation, government regulation and spending, import controls, worldwide competition, and liability for environmental damage, depletion of resources, and mandated expenditures for safety and pollution control. 
     The information technology industries can be significantly affected by obsolescence of existing technology, short product cycles, falling prices and profits, competition from new market entrants, and general economic conditions. In addition, information technology industries can be affected by the loss or impairment of intellectual property rights. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_GeographicExposureToChinaMember"
      id="ixv-2688">
     
       
      
      Geographic Exposure to China. 
      
     Because the fund invests a meaningful portion of its assets in China, the fund's performance is expected to be closely tied to social, political, and economic conditions in China and to be more volatile than the performance of more geographically diversified funds. The fund may obtain exposure to companies based or operated in China by investing through legal structures known as variable interest entities (VIEs). Instead of directly owning the equity securities of a Chinese company, a VIE enters into service and other contracts with the Chinese company. Although the VIE has no equity ownership of the Chinese company, the contractual arrangements permit the VIE to consolidate the Chinese company into its financial statements. Intervention by the Chinese government with respect to VIEs could significantly affect the Chinese company's performance and the enforceability of the VIE's contractual arrangements with the Chinese company. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-2697">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-2708">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_CorrelationToIndexMember"
      id="ixv-2723">
     
       
      
      Correlation to Index. 
      
     The performance of the fund and its  
       benchmark index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_PassiveManagementRiskMember"
      id="ixv-2735">
     
       
      
      Passive Management Risk. 
      
     The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's benchmark index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. 
     The fund will be concentrated to approximately the same extent that the fund's benchmark index concentrates in the securities of issuers in a particular industry. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-2750">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-2759">
     
       
      
      Small- and Mid-Cap Investing. 
      
     The value of securities of small to medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-2768">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000073600_contentCd_CEE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-2776">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2783">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2788">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2793"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2800"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2806"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2811">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_2022"
      decimals="INF"
      id="ixv-74125"
      unitRef="pure">-0.4420</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_2023"
      decimals="INF"
      id="ixv-74126"
      unitRef="pure">0.1290</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_2024"
      decimals="INF"
      id="ixv-74127"
      unitRef="pure">-0.2148</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_2025"
      decimals="INF"
      id="ixv-74128"
      unitRef="pure">0.2413</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2904">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000073600_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74129"
      unitRef="pure">0.2316</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2914">2023-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2919">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000073600_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74130"
      unitRef="pure">-0.2413</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2930">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2935">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000073600_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74131"
      unitRef="pure">-0.0120</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2946">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2951">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2956">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2959"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2966"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000073600_contentCd_CEE-PRO" id="ixv-2971"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073600_Cid_C000230605_ReturnBeforeTaxes_01"
      id="ixv-3009">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74132"
      unitRef="pure">0.2413</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073600AAR_A_RBT_loc"
      unitRef="pure">-0.0910</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073600_Cid_C000230605_AfterTaxesOnDistributions_01"
      id="ixv-3023">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74134"
      unitRef="pure">0.2371</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073600AAR_A_ATD_loc"
      unitRef="pure">-0.0921</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073600_Cid_C000230605_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-3037">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74136"
      unitRef="pure">0.1444</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Cid_C000230605_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000073600AAR_A_ATDS_loc"
      unitRef="pure">-0.0667</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073600_Indexid_IXV7M_contentCd_CEE-PRO_01"
      id="ixv-3052">
         Fidelity Electric Vehicles and Future Transportation Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Indexid_IXV7M_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74138"
      unitRef="pure">0.2353</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Indexid_IXV7M_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74139"
      unitRef="pure">-0.0867</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000073600_Indexid_MS159_contentCd_CEE-PRO_01"
      id="ixv-3072">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Indexid_MS159_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74140"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000073600_Indexid_MS159_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74141"
      unitRef="pure">0.1087</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000073600_Cid_C000230605" id="ixv-3104">2021-10-05</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3141">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Metaverse ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3150">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3155">
     
       
      
       
     Fidelity&#xae;  
     Metaverse ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity Metaverse Index 
     &#x2120; 
     . 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3164">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3170">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3181">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000075903_contentCd_CEE-PRO"
      decimals="0"
      id="ixv-74142"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3196">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="6"
      id="ixv-74143"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="6"
      id="ixv-74144"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="6"
      id="ixv-74145"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="6"
      id="ixv-74146"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3243">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="0"
      id="ixv-74147"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="0"
      id="ixv-74148"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="0"
      id="ixv-74149"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075903_Cid_C000235244"
      decimals="0"
      id="ixv-74150"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3300">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3305">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       
       33 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000075903_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74151"
      unitRef="pure">0.33</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3315">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3320">
     
       
      
      Normally investing at least 80% of assets in securities included in the Fidelity Metaverse IndexSM and in depositary receipts representing securities included in the index. "Metaverse" is a term used to describe a future state of the internet characterized by a network of both augmented reality and virtual worlds that can be experienced persistently and in a shared environment by large numbers of users. 
      
     The Fidelity Metaverse Index SM is designed to reflect the performance of a global universe of companies that develop, manufacture, distribute, or sell products or services related to establishing and enabling the Metaverse. 
     The Fidelity Metaverse Index SM is constructed using Fidelity's rules-based proprietary index methodology. The index methodology identifies and ranks stocks for inclusion in the index based on company revenues and proprietary natural language processing (NLP) scores. Stocks of companies are first selected based on market share and revenues tied to one or a combination of the following designated business activity categories, subject to thematic quality screens: computing hardware and components, digital infrastructure, design and engineering software, gaming technology and software, web development and content services, and smart phone and wearable technology. 
     After initial screens are applied, stocks are selected for inclusion in the index based on market share ranked by dollar revenue and a thematic relevancy score derived from a combination of revenue related to designated business activities and NLP scores. NLP is used to analyze text-based documents to identify companies with relevant keywords.&#160;&#160; 
     Stocks of companies with greater than 50% of their total revenue from one or a combination of designated business activities or at least 5% market share (based on total revenues in designated business activities) will comprise 85% or more of the index. 
     Stocks not meeting this criteria may also be included in the index but are generally capped at lower weights. Each stock is weighted based on modified average daily volume metrics subject to caps.  
      
       Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
     Primarily using replication; however, the fund may or may not hold all of the securities in the index. 
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-3356">
     
       
      
      Stock Market Volatility. 
      
     Stock markets and, as a result, stock market indexes, are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_MetaverseCompaniesMember"
      id="ixv-3365">
     
       
      
      Metaverse Companies. 
      
     Metaverse companies are subject to various risks, including those associated with limited product lines, markets, financial resources or personnel, intense competition, potentially rapid product obsolescence, impairment of intellectual property rights, disruptions in service, cybersecurity attacks, and changes in regulation. Although the fund's underlying index uses a rules-based proprietary index methodology that seeks to identify such companies, there is no guarantee that this methodology will be successful. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-3374">
     
       
      
      Foreign and Emerging Markets Risk. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
     The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors. 
     Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. 
     Foreign exchange rates also can be extremely volatile. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_SectorExposureMember"
      id="ixv-3389">
     
       
      
      Sector Exposure. 
      
     In seeking to track the performance of its underlying index, the fund will generally have significant exposure to one or more industries, groups of related industries, or sectors, and the fund's performance may be impacted by events affecting those industries or sectors. 
     The communication services industries can be significantly affected by government regulation, intense competition, technology changes, general economic conditions, consumer and business confidence and spending, and changes in consumer and business preferences. 
     The information technology industries can be significantly affected by obsolescence of existing technology, short product cycles, falling prices and profits, competition from new market entrants, and general economic conditions. In addition, information technology industries can be affected by the loss or impairment of intellectual property rights. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-3402">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-3413">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_CorrelationToIndexMember"
      id="ixv-3428">
     
       
      
      Correlation to Index. 
      
     The performance of the fund and its  
       benchmark index may vary somewhat due to factors such as fees and expenses of the fund, transaction costs, sample selection, regulatory restrictions, and timing differences associated with additions to and deletions from the index. Errors in the construction or calculation of the index may occur from time to time and may not be identified and corrected for some period of time, which may have an adverse impact on the fund and its shareholders. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_PassiveManagementRiskMember"
      id="ixv-3440">
     
       
      
      Passive Management Risk. 
      
     The fund is managed with a passive investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the fund's benchmark index or of the actual securities included in the index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the fund's performance could be lower than actively managed funds that may shift their portfolio assets to take advantage of market opportunities or lessen the impact of a market decline or a decline in the value of one or more issuers. 
     The fund will be concentrated to approximately the same extent that the fund's benchmark index concentrates in the securities of issuers in a particular industry. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-3455">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-3464">
     
       
      
      Small- and Mid-Cap Investing. 
      
     The value of securities of small to medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-3473">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075903_contentCd_CEE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-3481">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3488">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3493">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3498"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3505"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3511"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3516">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_2023"
      decimals="INF"
      id="ixv-74152"
      unitRef="pure">0.4062</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_2024"
      decimals="INF"
      id="ixv-74153"
      unitRef="pure">0.0680</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_2025"
      decimals="INF"
      id="ixv-74154"
      unitRef="pure">0.2207</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3604">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075903_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74155"
      unitRef="pure">0.2259</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3614">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3619">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075903_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74156"
      unitRef="pure">-0.0686</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3630">2023-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3635">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000075903_contentCd_CEE-PRO"
      decimals="4"
      id="ixv-74157"
      unitRef="pure">0.0823</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3645">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3650">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3655">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3658"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3665"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000075903_contentCd_CEE-PRO" id="ixv-3670"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075903_Cid_C000235244_ReturnBeforeTaxes_01"
      id="ixv-3708">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74158"
      unitRef="pure">0.2207</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000075903AAR_A_RBT_loc"
      unitRef="pure">0.1063</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075903_Cid_C000235244_AfterTaxesOnDistributions_01"
      id="ixv-3721">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74160"
      unitRef="pure">0.2178</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000075903AAR_A_ATD_loc"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075903_Cid_C000235244_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-3734">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74162"
      unitRef="pure">0.1319</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Cid_C000235244_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteCEE-PROS000075903AAR_A_ATDS_loc"
      unitRef="pure">0.0831</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075903_Indexid_IXV43_contentCd_CEE-PRO_01"
      id="ixv-3748">
         Fidelity Metaverse Index&#x2120;
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Indexid_IXV43_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74164"
      unitRef="pure">0.2258</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Indexid_IXV43_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74165"
      unitRef="pure">0.1114</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075903_Indexid_MS159_contentCd_CEE-PRO_01"
      id="ixv-3767">
         MSCI ACWI (All Country World Index) Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Indexid_MS159_contentCd_CEE-PRO_01"
      decimals="4"
      id="ixv-74166"
      unitRef="pure">0.2271</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075903_Indexid_MS159_contentCd_CEE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74167"
      unitRef="pure">0.1297</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075903_Cid_C000235244" id="ixv-3799">2022-04-19</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9258">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Sustainable High Yield ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9267">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9272">
     
       
      
       
     Fidelity&#xae;  
     Sustainable High Yield ETF seeks a high level of income. The fund may also seek capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9279">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9285">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9296">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000075296_contentCd_SHY-PRO"
      decimals="0"
      id="ixv-74168"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9311">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="6"
      id="ixv-74169"
      unitRef="pure">0.0055</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="6"
      id="ixv-74170"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="6"
      id="ixv-74171"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="6"
      id="ixv-74172"
      unitRef="pure">0.0055</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9358">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="0"
      id="ixv-74173"
      unitRef="usd">56</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="0"
      id="ixv-74174"
      unitRef="usd">176</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="0"
      id="ixv-74175"
      unitRef="usd">307</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000075296_Cid_C000234213"
      decimals="0"
      id="ixv-74176"
      unitRef="usd">689</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9415">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9420">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       
       99 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000075296_contentCd_SHY-PRO"
      decimals="4"
      id="ixv-74177"
      unitRef="pure">0.99</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9430">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9435">
     
       
      
      Normally investing at least 80% of assets in debt securities rated below investment grade (also referred to as high yield debt securities or junk bonds) that Fidelity Management &amp; Research Company LLC (FMR or Adviser) believes have positive environmental, social and governance (ESG) characteristics.  
      
     Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
     Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      
      When assessing the ESG characteristics of a security, the Adviser considers the following, where available: (i) the sustainability practices of the security's issuer or sponsor, as applicable (each, an "issuer"), based on an evaluation of such issuer's individual ESG profile; (ii) ESG factors related to the security's underlying pool of assets; and (iii) any third-party designation as a green, sustainable or sustainability-linked bond. A security's positive ESG characteristics can be determined under any of those three factors. 
      Using the Adviser's proprietary ESG  
        rating process to evaluate  
        an issuer's sustainability practices using a data-driven framework that includes both proprietary and third-party data, and may also  
        involve a qualitative  
        assessment of an issuer's sustainability  
        practices provided by the Adviser's  
        research  
        team.  
      The Adviser's ESG  
        rating of issuers are derived from multiple factors, including an issuer's environmental profile, which may include, but is not limited to, carbon and toxic emissions, water management, waste management, vulnerability to the physical impacts of climate change, and research and investment into products, services, and energies that reduce emissions and/or provide opportunities to transition to less carbon-intensive products or operations. An assessment of an issuer's social profile includes, but is not limited to, its approach to diversity and inclusion, human capital management, data privacy, product safety and human rights. With respect to governance, the independence and diversity of an issuer's board, its compensation practices and board oversight of critical ESG issues are considered as part of the assessment. These factors are weighted based on how material the Adviser believes each factor is to an issuer's financial outlook, and not all factors may be applicable to all issuers. Issuers with an above average ESG rating as determined by the Adviser are considered to have positive ESG characteristics and well-managed ESG risks.  
      Investing in issuers that FMR believes deliver tangible environmental or social impact through core business operations. An assessment of the impact characteristics of an issuer may involve corporate engagement and an analysis of issuer alignment with the United Nations Sustainable Development Goals using qualitative analysis as well as proprietary or third-party data. For example, issuers that provide access to clean water, education, or clean energy through their core business may be considered to deliver tangible impact.  
      When evaluating securitized debt securities (including mortgage-backed securities, commercial mortgage-backed securities, and other asset-backed securities), generally considering the issuer's ESG rating along with ESG factors related to the underlying pool of assets, such as energy efficiency and environmental impact of the underlying assets; providing access to affordable housing or opportunities for first time home ownership; and compliance with fair lending laws.  
      Using the ICE&#xae; BofA&#xae; US High Yield Constrained Index as a guide in structuring the fund and selecting its investments as it relates to credit quality distribution and risk characteristics. 
      Potentially investing in securities that have a higher credit quality than securities in the index. 
      Investing in companies in troubled or uncertain financial condition. 
      Investing in domestic and foreign issuers. 
      In addition to the ESG  
        rating process, using a proprietary multifactor quantitative model and fundamental analysis to screen over 1,000 bonds. The multifactor quantitative model uses a value and quality factor-based methodology to identify bonds with strong return potential and low probability of default. FMR also uses fundamental analysis of factors such as each issuer's financial condition and industry position, as well as economic and market conditions, to select investments.  
      Employing sustainable investing exclusion criteria to avoid investments in issuers that are directly engaged in, and/or derive significant revenue from, certain industries. Please see "Fund Basics - Investment Details - Sustainable Investing Exclusions" for additional information. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_SustainabilityRiskMember"
      id="ixv-9502">
     
       
      
      Sustainability Risk. 
      
     Application of Fidelity Management &amp; Research Company LLC's (FMR) (the Adviser) ESG  
       rating process and/or its sustainable investing exclusion criteria may affect the fund's exposure to certain issuers, sectors, regions, and countries and may affect the fund's performance depending on whether certain investments are in or out of favor. The criteria related to the fund's ESG  
       rating process and/or adherence to its sustainable investing exclusion criteria may result in the fund forgoing opportunities to buy certain securities when it might otherwise be advantageous to do so, or selling securities for ESG reasons when it might be otherwise disadvantageous for it to do so. As a result, the fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. There are significant differences in interpretations of what it means for an issuer to have positive ESG factors. While the Adviser believes its definitions are reasonable, the portfolio decisions it makes may differ with other investors' or advisers' views. When evaluating an issuer, the Adviser is dependent on information or data obtained through voluntary or third-party reporting that may be incomplete, inaccurate, or unavailable, which could cause the Adviser to incorrectly assess an issuer's business practices. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-9517">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_ForeignExposureMember"
      id="ixv-9526">
     
       
      
      Foreign Exposure. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-9535">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell. 
     Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-9548">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_TradingIssuesMember"
      id="ixv-9563">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_CashTransactionsRiskMember"
      id="ixv-9572">
     
       
      
      Cash Transactions Risk. 
      
     Unlike certain ETFs, the fund may effect some or all creations and redemptions using cash, rather than in-kind securities. As a result, an investment in the fund may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-9581">
     
       
      
      Quantitative Investing. 
      
     Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-9591">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000075296_contentCd_SHY-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-9599">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9606">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9611">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and additional indexes over various periods of time. 
        
      
       
     The additional indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9616"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and additional indexes over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9623"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9629"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9634">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_2023"
      decimals="INF"
      id="ixv-74178"
      unitRef="pure">0.1281</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_2024"
      decimals="INF"
      id="ixv-74179"
      unitRef="pure">0.0869</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_2025"
      decimals="INF"
      id="ixv-74180"
      unitRef="pure">0.0915</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9722">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000075296_contentCd_SHY-PRO"
      decimals="4"
      id="ixv-74181"
      unitRef="pure">0.0695</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9732">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9737">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000075296_contentCd_SHY-PRO"
      decimals="4"
      id="ixv-74182"
      unitRef="pure">-0.0028</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9748">2023-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9753">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000075296_contentCd_SHY-PRO"
      decimals="4"
      id="ixv-74183"
      unitRef="pure">0.0118</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9763">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9768">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9773">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9776"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9783"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher contextRef="Pid_S000075296_contentCd_SHY-PRO" id="ixv-9788"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075296_Cid_C000234213_ReturnBeforeTaxes_01"
      id="ixv-9826">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74184"
      unitRef="pure">0.0915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSHY-PROS000075296AAR_A_RBT_loc"
      unitRef="pure">0.0577</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075296_Cid_C000234213_AfterTaxesOnDistributions_01"
      id="ixv-9839">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74186"
      unitRef="pure">0.0626</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSHY-PROS000075296AAR_A_ATD_loc"
      unitRef="pure">0.0301</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075296_Cid_C000234213_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-9852">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74188"
      unitRef="pure">0.0534</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Cid_C000234213_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteSHY-PROS000075296AAR_A_ATDS_loc"
      unitRef="pure">0.0316</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075296_Indexid_ML038_contentCd_SHY-PRO_01"
      id="ixv-9866">
         ICE&#xae; BofA&#xae; US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Indexid_ML038_contentCd_SHY-PRO_01"
      decimals="4"
      id="ixv-74190"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Indexid_ML038_contentCd_SHY-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74191"
      unitRef="pure">0.0561</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075296_Indexid_IXWRV_contentCd_SHY-PRO_01"
      id="ixv-9885">
         ICE&#xae; US High Yield Best-in-Class ESG Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Indexid_IXWRV_contentCd_SHY-PRO_01"
      decimals="4"
      id="ixv-74192"
      unitRef="pure">0.0866</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Indexid_IXWRV_contentCd_SHY-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74193"
      unitRef="pure">0.0546</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000075296_Indexid_LB091_contentCd_SHY-PRO_01"
      id="ixv-9904">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Indexid_LB091_contentCd_SHY-PRO_01"
      decimals="4"
      id="ixv-74194"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000075296_Indexid_LB091_contentCd_SHY-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74195"
      unitRef="pure">0.0146</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000075296_Cid_C000234213" id="ixv-9936">2022-02-15</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11527">Fund Summary
Fund:
Fidelity&#xae; Enhanced Emerging Markets ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11537">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11541">Fidelity&#xae; Enhanced Emerging Markets ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11545">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11547">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11557">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74196"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11569">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="6"
      id="ixv-74197"
      unitRef="pure">0.0038</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="6"
      id="ixv-74198"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="6"
      id="ixv-74199"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="6"
      id="ixv-74200"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11615">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="0"
      id="ixv-74201"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="0"
      id="ixv-74202"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="0"
      id="ixv-74203"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000087780_Cid_C000253742"
      decimals="0"
      id="ixv-74204"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11674">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11678">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 130% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74205"
      unitRef="pure">1.30</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11682">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11685">
Normally investing at least 80% of assets in securities of issuers and in depositary receipts representing securities of issuers in emerging markets and other investments that are tied economically to emerging markets.
Emerging markets include countries that have an emerging stock market as defined by MSCI, countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets that the Adviser identifies as having similar emerging markets characteristics.
The Adviser considers a number of factors to determine whether an issuer is located in or tied economically to a particular country or region including: whether a third-party vendor has assigned a particular country or region classification to the issuer or included the issuer in an index representative of a particular country or region; the issuer's domicile, incorporation, and location of assets; whether the issuer derives at least 50% of its revenues from, or has at least 50% of its assets in, a particular country or region; the source of government guarantees (if any); and the primary trading market or listing exchange. Whether an issuer is located in or tied economically to a particular country can be determined under any of these factors.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Normally investing primarily in common stocks.Allocating investments across different emerging markets countries.Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors.&#160; The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the MSCI Emerging Markets Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-11706">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_ForeignAndEmergingMarketsRiskMember"
      id="ixv-11712">Foreign and Emerging Markets Risk.
Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market.
The extent of economic development; political stability; market depth, infrastructure, and capitalization; and regulatory oversight can be less than in more developed markets. Emerging markets typically have less established legal, accounting and financial reporting systems than those in more developed markets, which may reduce the scope or quality of financial information available to investors.
Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile.
Foreign exchange rates also can be extremely volatile.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_GeographicExposureToAsiaMember"
      id="ixv-11724">Geographic Exposure to Asia.
Because the fund invests a meaningful portion of its assets in Asia, the fund's performance is expected to be closely tied to social, political, and economic conditions within Asia and to be more volatile than the performance of more geographically diversified funds.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_GeographicExposureToChinaMember"
      id="ixv-11730">Geographic Exposure to China.
Because the fund invests a meaningful portion of its assets in China, the fund's performance is expected to be closely tied to social, political, and economic conditions in China and to be more volatile than the performance of more geographically diversified funds. The fund may obtain exposure to companies based or operated in China by investing through legal structures known as variable interest entities (VIEs). Instead of directly owning the equity securities of a Chinese company, a VIE enters into service and other contracts with the Chinese company. Although the VIE has no equity ownership of the Chinese company, the contractual arrangements permit the VIE to consolidate the Chinese company into its financial statements. Intervention by the Chinese government with respect to VIEs could significantly affect the Chinese company's performance and the enforceability of the VIE's contractual arrangements with the Chinese company.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_GeographicExposureToTheChinaRegionMember"
      id="ixv-11736">Geographic Exposure to the China Region.
Because the fund invests a meaningful portion of its assets in the China region, the fund's performance is expected to be closely tied to social, political, and economic conditions within the China region and to be more volatile than the performance of more geographically diversified funds.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-11742">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-11750">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-11760">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_CashTransactionsRiskMember"
      id="ixv-11766">Cash Transactions Risk.
Unlike certain ETFs, the fund expects to generally effect its creations and redemptions partially for cash, rather than primarily for in-kind securities. As a result, an investment in the fund may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-11772">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_HighPortfolioTurnoverMember"
      id="ixv-11778">High Portfolio Turnover.
High portfolio turnover (more than 100%) may result in increased transaction costs and potentially higher capital gains or losses. The effects of higher than normal portfolio turnover may adversely affect the fund's performance.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-11785">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-11788">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11792">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11795">
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11799">The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11802">Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11806"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11813">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_2025"
      decimals="INF"
      id="ixv-74206"
      unitRef="pure">0.3438</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11890"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74207"
      unitRef="pure">0.1287</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11900">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11905"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74208"
      unitRef="pure">0.0219</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11915">2025-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11920"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74209"
      unitRef="pure">0.2916</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11930">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11934">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11938">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11939">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11942"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000087780_contentCd_EIE-PRO"
      id="ixv-11944"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087780_Cid_C000253742_ReturnBeforeTaxes_01"
      id="ixv-11982">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74210"
      unitRef="pure">0.3438</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEIE-PROS000087780AAR_A_RBT_loc"
      unitRef="pure">0.2900</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087780_Cid_C000253742_AfterTaxesOnDistributions_01"
      id="ixv-11995">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74212"
      unitRef="pure">0.3367</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEIE-PROS000087780AAR_A_ATD_loc"
      unitRef="pure">0.2824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087780_Cid_C000253742_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-12008">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74214"
      unitRef="pure">0.2071</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Cid_C000253742_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEIE-PROS000087780AAR_A_ATDS_loc"
      unitRef="pure">0.2200</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087780_Indexid_MC041_contentCd_EIE-PRO_01"
      id="ixv-12022">MSCI Emerging Markets Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Indexid_MC041_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74216"
      unitRef="pure">0.3353</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087780_Indexid_MC041_contentCd_EIE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74217"
      unitRef="pure">0.2772</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000087780_Cid_C000253742" id="ixv-12052">2024-11-19</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12090">Fund Summary
Fund:
Fidelity&#xae; Enhanced International ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12100">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12104">Fidelity&#xae; Enhanced International ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12108">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12110">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12120">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74218"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12132">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="6"
      id="ixv-74219"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="6"
      id="ixv-74220"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="6"
      id="ixv-74221"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="6"
      id="ixv-74222"
      unitRef="pure">0.0028</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12178">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="0"
      id="ixv-74223"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="0"
      id="ixv-74224"
      unitRef="usd">90</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="0"
      id="ixv-74225"
      unitRef="usd">157</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081802_Cid_C000244833"
      decimals="0"
      id="ixv-74226"
      unitRef="usd">356</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12237">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12241">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 98% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74227"
      unitRef="pure">0.98</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12245">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12248">
Normally investing at least 80% of assets in common stocks included in the MSCI EAFE Index.
The MSCI EAFE Index is a market capitalization-weighted index that is designed to measure the investable equity market performance for global investors in developed markets, excluding the U.S. &amp; Canada.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the MSCI EAFE Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-12263">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_ForeignExposureMember"
      id="ixv-12269">Foreign Exposure.
Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market.
Foreign exchange rates also can be extremely volatile.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_GeographicExposureToEuropeMember"
      id="ixv-12277">Geographic Exposure to Europe.
Because the fund invests a meaningful portion of its assets in Europe, the fund's performance is expected to be closely tied to social, political, and economic conditions within Europe and to be more volatile than the performance of more geographically diversified funds.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_GeographicExposureToJapanMember"
      id="ixv-12283">Geographic Exposure to Japan.
Because the fund invests a meaningful portion of its assets in Japan, the fund's performance is expected to be closely tied to social, political, and economic conditions within Japan and to be more volatile than the performance of more geographically diversified funds.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-12289">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-12297">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-12307">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-12313">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-12320">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-12323">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12327">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12330">
Effective November 17, 2023, Fidelity&#xae; International Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period.
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12338">The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12341"> Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12345"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12352">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2016"
      decimals="INF"
      id="ixv-74228"
      unitRef="pure">0.0189</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2017"
      decimals="INF"
      id="ixv-74229"
      unitRef="pure">0.2759</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2018"
      decimals="INF"
      id="ixv-74230"
      unitRef="pure">-0.1472</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2019"
      decimals="INF"
      id="ixv-74231"
      unitRef="pure">0.1827</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2020"
      decimals="INF"
      id="ixv-74232"
      unitRef="pure">0.0766</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2021"
      decimals="INF"
      id="ixv-74233"
      unitRef="pure">0.1147</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2022"
      decimals="INF"
      id="ixv-74234"
      unitRef="pure">-0.1398</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2023"
      decimals="INF"
      id="ixv-74235"
      unitRef="pure">0.1896</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2024"
      decimals="INF"
      id="ixv-74236"
      unitRef="pure">0.0678</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_2025"
      decimals="INF"
      id="ixv-74237"
      unitRef="pure">0.3725</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12458"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74238"
      unitRef="pure">0.1715</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12468">2022-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12473"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74239"
      unitRef="pure">-0.2278</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12484">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12489"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74240"
      unitRef="pure">0.1153</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12499">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12503">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12507">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12508">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12511"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081802_contentCd_EIE-PRO"
      id="ixv-12513"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081802_Cid_C000244833_ReturnBeforeTaxes_01"
      id="ixv-12558">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74241"
      unitRef="pure">0.3725</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74242"
      unitRef="pure">0.1083</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-74243"
      unitRef="pure">0.0897</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributions_01"
      id="ixv-12573">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74244"
      unitRef="pure">0.3607</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74245"
      unitRef="pure">0.1016</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-74246"
      unitRef="pure">0.0843</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-12588">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74247"
      unitRef="pure">0.2255</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74248"
      unitRef="pure">0.0851</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Cid_C000244833_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-74249"
      unitRef="pure">0.0727</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081802_Indexid_MS001_contentCd_EIE-PRO_01"
      id="ixv-12604">MSCI EAFE Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Indexid_MS001_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74250"
      unitRef="pure">0.3159</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Indexid_MS001_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74251"
      unitRef="pure">0.0917</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081802_Indexid_MS001_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74252"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12672">Fund Summary
Fund:
Fidelity&#xae; Enhanced Large Cap Core ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12682">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12686">Fidelity&#xae; Enhanced Large Cap Core ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12690">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12692">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12702">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74253"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12714">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="6"
      id="ixv-74254"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="6"
      id="ixv-74255"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="6"
      id="ixv-74256"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="6"
      id="ixv-74257"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12760">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="0"
      id="ixv-74258"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="0"
      id="ixv-74259"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="0"
      id="ixv-74260"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081804_Cid_C000244835"
      decimals="0"
      id="ixv-74261"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12819">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12823">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 77% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74262"
      unitRef="pure">0.77</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12827">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12830">
Normally investing at least 80% of assets in common stocks included in the S&amp;P 500&#xae; Index.
The S&amp;P 500&#xae; Index is a market capitalization-weighted index of 500 common stocks that represents the performance of the large-capitalization segment of the U.S. market.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the S&amp;P 500&#xae; Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-12849">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-12855">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-12863">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-12871">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-12877">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-12884">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-12887">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12891">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12894">
Effective November 17, 2023, Fidelity&#xae; Large Cap Core Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period.
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12902">The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12905"> Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12909"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-12916">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2016"
      decimals="INF"
      id="ixv-74263"
      unitRef="pure">0.1086</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2017"
      decimals="INF"
      id="ixv-74264"
      unitRef="pure">0.2165</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2018"
      decimals="INF"
      id="ixv-74265"
      unitRef="pure">-0.0335</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2019"
      decimals="INF"
      id="ixv-74266"
      unitRef="pure">0.2766</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2020"
      decimals="INF"
      id="ixv-74267"
      unitRef="pure">0.1805</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2021"
      decimals="INF"
      id="ixv-74268"
      unitRef="pure">0.3036</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2022"
      decimals="INF"
      id="ixv-74269"
      unitRef="pure">-0.1620</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2023"
      decimals="INF"
      id="ixv-74270"
      unitRef="pure">0.2608</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2024"
      decimals="INF"
      id="ixv-74271"
      unitRef="pure">0.2533</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_2025"
      decimals="INF"
      id="ixv-74272"
      unitRef="pure">0.1713</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13022"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74273"
      unitRef="pure">0.1939</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13032">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13037"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74274"
      unitRef="pure">-0.1853</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13048">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13053"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74275"
      unitRef="pure">0.1419</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13063">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13067">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13071">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13072">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13075"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081804_contentCd_EIE-PRO"
      id="ixv-13077"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081804_Cid_C000244835_ReturnBeforeTaxes_01"
      id="ixv-13122">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74276"
      unitRef="pure">0.1713</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74277"
      unitRef="pure">0.1512</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-74278"
      unitRef="pure">0.1479</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributions_01"
      id="ixv-13137">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74279"
      unitRef="pure">0.1685</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74280"
      unitRef="pure">0.1398</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-74281"
      unitRef="pure">0.1375</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-13152">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74282"
      unitRef="pure">0.1031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74283"
      unitRef="pure">0.1174</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Cid_C000244835_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-74284"
      unitRef="pure">0.1203</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081804_Indexid_SP001_contentCd_EIE-PRO_01"
      id="ixv-13168">S&amp;P 500&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Indexid_SP001_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74285"
      unitRef="pure">0.1788</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Indexid_SP001_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74286"
      unitRef="pure">0.1442</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081804_Indexid_SP001_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74287"
      unitRef="pure">0.1482</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13236">Fund Summary
Fund:
Fidelity&#xae; Enhanced Large Cap Growth ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13246">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13250">Fidelity&#xae; Enhanced Large Cap Growth ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13254">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13256">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13266">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74288"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13278">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="6"
      id="ixv-74289"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="6"
      id="ixv-74290"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="6"
      id="ixv-74291"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="6"
      id="ixv-74292"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13324">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="0"
      id="ixv-74293"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="0"
      id="ixv-74294"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="0"
      id="ixv-74295"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081805_Cid_C000244836"
      decimals="0"
      id="ixv-74296"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13383">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13387">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 71% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74297"
      unitRef="pure">0.71</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13391">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13394">
Normally investing at least 80% of assets in common stocks included in the Russell 1000&#xae; Growth Index.
The Russell 1000&#xae; Growth Index is a market capitalization-weighted index designed to measure the performance of the large-cap growth segment of the U.S. equity market.
The Russell 1000&#xae; Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 1000&#xae; Growth Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-13415">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-13421">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-13429">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-13437">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_GrowthInvestingMember"
      id="ixv-13443">"Growth" Investing.
 "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.&#160; &#160; &#160;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-13450">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_RiskNondiversifiedStatusMember"
      id="ixv-13457">In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-13460">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-13463">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13467">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13470">
Effective November 17, 2023, Fidelity&#xae; Large Cap Growth Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period.
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13478">The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13481"> Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13485"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13492">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2016"
      decimals="INF"
      id="ixv-74298"
      unitRef="pure">0.0821</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2017"
      decimals="INF"
      id="ixv-74299"
      unitRef="pure">0.2714</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2018"
      decimals="INF"
      id="ixv-74300"
      unitRef="pure">-0.0377</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2019"
      decimals="INF"
      id="ixv-74301"
      unitRef="pure">0.3145</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2020"
      decimals="INF"
      id="ixv-74302"
      unitRef="pure">0.3598</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2021"
      decimals="INF"
      id="ixv-74303"
      unitRef="pure">0.2932</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2022"
      decimals="INF"
      id="ixv-74304"
      unitRef="pure">-0.2657</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2023"
      decimals="INF"
      id="ixv-74305"
      unitRef="pure">0.3884</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2024"
      decimals="INF"
      id="ixv-74306"
      unitRef="pure">0.3529</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_2025"
      decimals="INF"
      id="ixv-74307"
      unitRef="pure">0.1856</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13598"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74308"
      unitRef="pure">0.2621</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13608">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13613"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74309"
      unitRef="pure">-0.1959</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13624">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13629"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74310"
      unitRef="pure">0.0837</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13639">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13643">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13647">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13648">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13651"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081805_contentCd_EIE-PRO"
      id="ixv-13653"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081805_Cid_C000244836_ReturnBeforeTaxes_01"
      id="ixv-13698">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74311"
      unitRef="pure">0.1856</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74312"
      unitRef="pure">0.1616</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-74313"
      unitRef="pure">0.1747</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributions_01"
      id="ixv-13713">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74314"
      unitRef="pure">0.1844</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74315"
      unitRef="pure">0.1515</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-74316"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-13728">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74317"
      unitRef="pure">0.1106</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74318"
      unitRef="pure">0.1264</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Cid_C000244836_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-74319"
      unitRef="pure">0.1439</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081805_Indexid_RS004_contentCd_EIE-PRO_01"
      id="ixv-13744">Russell 1000&#xae; Growth Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Indexid_RS004_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74320"
      unitRef="pure">0.1856</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Indexid_RS004_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74321"
      unitRef="pure">0.1532</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Indexid_RS004_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74322"
      unitRef="pure">0.1813</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081805_Indexid_RS001_contentCd_EIE-PRO_01"
      id="ixv-13769">Russell 1000&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Indexid_RS001_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74323"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Indexid_RS001_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74324"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081805_Indexid_RS001_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74325"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13837">Fund Summary
Fund:
Fidelity&#xae; Enhanced Large Cap Value ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13847">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13851">Fidelity&#xae; Enhanced Large Cap Value ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13855">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13857">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13867">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74326"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13879">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="6"
      id="ixv-74327"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="6"
      id="ixv-74328"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="6"
      id="ixv-74329"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="6"
      id="ixv-74330"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13925">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="0"
      id="ixv-74331"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="0"
      id="ixv-74332"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="0"
      id="ixv-74333"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081806_Cid_C000244837"
      decimals="0"
      id="ixv-74334"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13984">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13988">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 72% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74335"
      unitRef="pure">0.72</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13992">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-13995">
Normally investing at least 80% of assets in common stocks included in the Russell 1000&#xae; Value Index.
The Russell 1000&#xae; Value Index is a market capitalization-weighted index designed to measure the performance of the large-cap value segment of the U.S. equity market.
The Russell 1000&#xae; Value Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 1000&#xae; Value Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-14018">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-14024">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-14032">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-14040">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_ValueInvestingMember"
      id="ixv-14046">"Value" Investing.
"Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-14052">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-14059">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-14062">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14066">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14069">
Effective November 17, 2023, Fidelity&#xae; Large Cap Value Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period.
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14077">The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14080"> Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14084"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14091">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2016"
      decimals="INF"
      id="ixv-74336"
      unitRef="pure">0.1632</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2017"
      decimals="INF"
      id="ixv-74337"
      unitRef="pure">0.1588</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2018"
      decimals="INF"
      id="ixv-74338"
      unitRef="pure">-0.0753</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2019"
      decimals="INF"
      id="ixv-74339"
      unitRef="pure">0.2416</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2020"
      decimals="INF"
      id="ixv-74340"
      unitRef="pure">0.0443</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2021"
      decimals="INF"
      id="ixv-74341"
      unitRef="pure">0.2830</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2022"
      decimals="INF"
      id="ixv-74342"
      unitRef="pure">-0.0647</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2023"
      decimals="INF"
      id="ixv-74343"
      unitRef="pure">0.1077</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2024"
      decimals="INF"
      id="ixv-74344"
      unitRef="pure">0.1588</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_2025"
      decimals="INF"
      id="ixv-74345"
      unitRef="pure">0.1595</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14197"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74346"
      unitRef="pure">0.1670</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14207">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14212"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74347"
      unitRef="pure">-0.2569</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14223">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14228"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74348"
      unitRef="pure">0.2061</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14238">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14242">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14246">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14247">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14250"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081806_contentCd_EIE-PRO"
      id="ixv-14252"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081806_Cid_C000244837_ReturnBeforeTaxes_01"
      id="ixv-14297">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74349"
      unitRef="pure">0.1595</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74350"
      unitRef="pure">0.1230</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-74351"
      unitRef="pure">0.1118</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributions_01"
      id="ixv-14312">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74352"
      unitRef="pure">0.1544</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74353"
      unitRef="pure">0.1097</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-74354"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-14327">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74355"
      unitRef="pure">0.0973</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74356"
      unitRef="pure">0.0944</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Cid_C000244837_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-74357"
      unitRef="pure">0.0885</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081806_Indexid_RS005_contentCd_EIE-PRO_01"
      id="ixv-14343">Russell 1000&#xae; Value Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Indexid_RS005_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74358"
      unitRef="pure">0.1591</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Indexid_RS005_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74359"
      unitRef="pure">0.1133</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Indexid_RS005_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74360"
      unitRef="pure">0.1053</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081806_Indexid_RS001_contentCd_EIE-PRO_01"
      id="ixv-14368">Russell 1000&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Indexid_RS001_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74361"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Indexid_RS001_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74362"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081806_Indexid_RS001_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74363"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14436">Fund Summary
Fund:
Fidelity&#xae; Enhanced Mid Cap Core ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14446">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14450">Fidelity&#xae; Enhanced Mid Cap Core ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14454">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14456">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14466">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74364"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14478">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="6"
      id="ixv-74365"
      unitRef="pure">0.0023</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="6"
      id="ixv-74366"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="6"
      id="ixv-74367"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="6"
      id="ixv-74368"
      unitRef="pure">0.0023</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14524">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="0"
      id="ixv-74369"
      unitRef="usd">24</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="0"
      id="ixv-74370"
      unitRef="usd">74</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="0"
      id="ixv-74371"
      unitRef="usd">130</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081803_Cid_C000244834"
      decimals="0"
      id="ixv-74372"
      unitRef="usd">293</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14583">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14587">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 78% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74373"
      unitRef="pure">0.78</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14591">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14594">
Normally investing at least 80% of assets in common stocks included in the Russell Midcap&#xae; Index. &#160; &#160;
The Russell Midcap&#xae; Index is a market capitalization-weighted index designed to measure the performance of the mid-cap segment of the U.S. equity market.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell Midcap&#xae; Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-14613">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-14619">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-14627">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-14637">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-14643">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_MidCapInvestingMember"
      id="ixv-14649">Mid Cap Investing.
The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-14656">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-14659">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14663">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14666">
Effective November 17, 2023, Fidelity&#xae; Mid Cap Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period.
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14674">The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14677"> Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14681"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14688">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2016"
      decimals="INF"
      id="ixv-74374"
      unitRef="pure">0.1349</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2017"
      decimals="INF"
      id="ixv-74375"
      unitRef="pure">0.1840</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2018"
      decimals="INF"
      id="ixv-74376"
      unitRef="pure">-0.1172</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2019"
      decimals="INF"
      id="ixv-74377"
      unitRef="pure">0.2735</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2020"
      decimals="INF"
      id="ixv-74378"
      unitRef="pure">0.1537</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2021"
      decimals="INF"
      id="ixv-74379"
      unitRef="pure">0.2412</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2022"
      decimals="INF"
      id="ixv-74380"
      unitRef="pure">-0.1421</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2023"
      decimals="INF"
      id="ixv-74381"
      unitRef="pure">0.1590</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2024"
      decimals="INF"
      id="ixv-74382"
      unitRef="pure">0.2123</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_2025"
      decimals="INF"
      id="ixv-74383"
      unitRef="pure">0.1213</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14794"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74384"
      unitRef="pure">0.2431</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14804">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14809"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74385"
      unitRef="pure">-0.2729</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14820">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14825"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74386"
      unitRef="pure">0.1196</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14835">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14839">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14843">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14844">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14847"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081803_contentCd_EIE-PRO"
      id="ixv-14849"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081803_Cid_C000244834_ReturnBeforeTaxes_01"
      id="ixv-14894">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74387"
      unitRef="pure">0.1213</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74388"
      unitRef="pure">0.1090</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-74389"
      unitRef="pure">0.1133</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributions_01"
      id="ixv-14909">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74390"
      unitRef="pure">0.1175</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74391"
      unitRef="pure">0.0983</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-74392"
      unitRef="pure">0.1014</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-14924">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74393"
      unitRef="pure">0.0737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74394"
      unitRef="pure">0.0840</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Cid_C000244834_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-74395"
      unitRef="pure">0.0899</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081803_Indexid_RS006_contentCd_EIE-PRO_01"
      id="ixv-14940">Russell Midcap&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Indexid_RS006_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74396"
      unitRef="pure">0.1060</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Indexid_RS006_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74397"
      unitRef="pure">0.0867</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Indexid_RS006_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74398"
      unitRef="pure">0.1101</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081803_Indexid_RS003_contentCd_EIE-PRO_01"
      id="ixv-14965">Russell 3000&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Indexid_RS003_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74399"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Indexid_RS003_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74400"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081803_Indexid_RS003_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74401"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15033">Fund Summary
Fund:
Fidelity&#xae; Enhanced Mid Cap Growth ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15043">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15047">Fidelity&#xae; Enhanced Mid Cap Growth ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15051">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15053">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15063">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74402"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15075">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000102550_Cid_C000273052"
      decimals="6"
      id="ixv-74403"
      unitRef="pure">0.0023</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000102550_Cid_C000273052"
      decimals="6"
      id="ixv-74404"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000102550_Cid_C000273052"
      decimals="6"
      id="footnoteS000102550EIE-PROAOE_AC000273052_OE"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000102550_Cid_C000273052"
      decimals="6"
      id="ixv-74406"
      unitRef="pure">0.0023</oef:ExpensesOverAssets>
    <oef:OtherExpensesNewFundBasedOnEstimates
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15126">Based on estimated amounts for the current fiscal year.</oef:OtherExpensesNewFundBasedOnEstimates>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15131">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000102550_Cid_C000273052"
      decimals="0"
      id="ixv-74407"
      unitRef="usd">24</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000102550_Cid_C000273052"
      decimals="0"
      id="ixv-74408"
      unitRef="usd">74</oef:ExpenseExampleYear03>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15172">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15176">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. For the period from April 28, 2026 to June 30, 2026, the fund's portfolio turnover rate was 53% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74409"
      unitRef="pure">0.53</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15180">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15183">
Normally investing at least 80% of assets in common stocks included in the Russell Midcap&#xae; Growth Index.
The Russell Midcap&#xae; Growth Index is a market capitalization-weighted index designed to measure the performance of the mid-cap growth segment of the U.S. equity market. It includes those Russell MidCap&#xae; Index companies with higher price-to-book ratios and higher forecasted growth values.
The Russell Midcap&#xae; Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell Midcap&#xae; Growth Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-15206">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-15212">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-15220">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-15230">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_GrowthInvestingMember"
      id="ixv-15236">"Growth" Investing.
 "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.&#160; &#160; &#160;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-15243">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_MidCapInvestingMember"
      id="ixv-15249">Mid Cap Investing.
The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-15256">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-15259">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15263">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15266">
Performance history will be available for the fund after the fund has been in operation for one calendar year.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Pid_S000102550_contentCd_EIE-PRO"
      id="ixv-15268">Performance history will be available for the fund after the fund has been in operation for one calendar year.</oef:PerformanceOneYearOrLess>
    <oef:RiskReturnHeading
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15301">Fund Summary
Fund:
Fidelity&#xae; Enhanced Mid Cap Value ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15311">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15315">Fidelity&#xae; Enhanced Mid Cap Value ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15319">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15321">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15331">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74410"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15343">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000102551_Cid_C000273053"
      decimals="6"
      id="ixv-74411"
      unitRef="pure">0.0023</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000102551_Cid_C000273053"
      decimals="6"
      id="ixv-74412"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000102551_Cid_C000273053"
      decimals="6"
      id="footnoteS000102551EIE-PROAOE_AC000273053_OE"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000102551_Cid_C000273053"
      decimals="6"
      id="ixv-74414"
      unitRef="pure">0.0023</oef:ExpensesOverAssets>
    <oef:OtherExpensesNewFundBasedOnEstimates
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15394">Based on estimated amounts for the current fiscal year.</oef:OtherExpensesNewFundBasedOnEstimates>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15399">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000102551_Cid_C000273053"
      decimals="0"
      id="ixv-74415"
      unitRef="usd">24</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000102551_Cid_C000273053"
      decimals="0"
      id="ixv-74416"
      unitRef="usd">74</oef:ExpenseExampleYear03>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15440">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15444">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. For the period from April 28, 2026 to June 30, 2026, the fund's portfolio turnover rate was 30% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74417"
      unitRef="pure">0.30</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15448">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15451">
Normally investing at least 80% of assets in common stocks included in the Russell Midcap&#xae; Value Index.
The Russell Midcap&#xae; Value Index is a market capitalization-weighted index designed to measure the performance of the mid-cap value segment of the U.S. equity market. It includes those Russell MidCap&#xae; Index companies with lower price-to-book ratios and lower forecasted growth values.
The Russell Midcap&#xae; Value Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell Midcap&#xae; Value Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-15474">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-15480">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-15488">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-15498">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_ValueInvestingMember"
      id="ixv-15504">"Value" Investing.
"Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-15510">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_MidCapInvestingMember"
      id="ixv-15516">Mid Cap Investing.
The value of securities of medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-15523">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-15526">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15530">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15533">
Performance history will be available for the fund after the fund has been in operation for one calendar year.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Pid_S000102551_contentCd_EIE-PRO"
      id="ixv-15535">Performance history will be available for the fund after the fund has been in operation for one calendar year.</oef:PerformanceOneYearOrLess>
    <oef:RiskReturnHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15568">Fund Summary
Fund:
Fidelity&#xae; Enhanced Small Cap Core ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15578">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15582">Fidelity&#xae; Enhanced Small Cap Core ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15586">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15588">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15598">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74418"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15610">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="6"
      id="ixv-74419"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="6"
      id="ixv-74420"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="6"
      id="ixv-74421"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="6"
      id="ixv-74422"
      unitRef="pure">0.0028</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15656">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="0"
      id="ixv-74423"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="0"
      id="ixv-74424"
      unitRef="usd">90</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="0"
      id="ixv-74425"
      unitRef="usd">157</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000081807_Cid_C000244838"
      decimals="0"
      id="ixv-74426"
      unitRef="usd">356</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15715">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15719">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 54% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74427"
      unitRef="pure">0.54</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15723">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15726">
Normally investing at least 80% of assets in common stocks included in the Russell 2000&#xae; Index.
The Russell 2000&#xae; Index is a market capitalization-weighted index designed to measure the performance of the small-cap segment of the U.S. equity market.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 2000&#xae; Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-15745">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-15751">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-15759">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-15769">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-15775">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_SmallCapInvestingMember"
      id="ixv-15781">Small Cap Investing.
The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-15788">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-15791">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15795">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15798">
Effective November 17, 2023, Fidelity&#xae; Small Cap Enhanced Index Fund ("Predecessor Fund") was reorganized into the fund ("Reorganization"). The Predecessor Fund's investment objective was identical to the fund's and the Predecessor Fund was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the fund. The Predecessor Fund was designated as the accounting survivor in the Reorganization. As a result, the fund has assumed the Predecessor Fund's historical performance and the performance information shown below for periods prior to November 17, 2023 reflects that of the Predecessor Fund which had different fees and expenses than the fund. Past performance may have been different if the fund's current fee structure had been in place during the period.
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15806">The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15809"> Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15813"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15820">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2016"
      decimals="INF"
      id="ixv-74428"
      unitRef="pure">0.2284</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2017"
      decimals="INF"
      id="ixv-74429"
      unitRef="pure">0.0722</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2018"
      decimals="INF"
      id="ixv-74430"
      unitRef="pure">-0.1304</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2019"
      decimals="INF"
      id="ixv-74431"
      unitRef="pure">0.2365</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2020"
      decimals="INF"
      id="ixv-74432"
      unitRef="pure">0.1853</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2021"
      decimals="INF"
      id="ixv-74433"
      unitRef="pure">0.2054</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2022"
      decimals="INF"
      id="ixv-74434"
      unitRef="pure">-0.1828</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2023"
      decimals="INF"
      id="ixv-74435"
      unitRef="pure">0.2104</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2024"
      decimals="INF"
      id="ixv-74436"
      unitRef="pure">0.1648</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_2025"
      decimals="INF"
      id="ixv-74437"
      unitRef="pure">0.1770</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15926"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74438"
      unitRef="pure">0.3184</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15936">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15941"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74439"
      unitRef="pure">-0.3145</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15952">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15957"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74440"
      unitRef="pure">0.1990</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15967">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15971">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15975">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15976">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15979"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000081807_contentCd_EIE-PRO"
      id="ixv-15981"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081807_Cid_C000244838_ReturnBeforeTaxes_01"
      id="ixv-16026">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74441"
      unitRef="pure">0.1770</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74442"
      unitRef="pure">0.1033</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_ReturnBeforeTaxes_10"
      decimals="4"
      id="ixv-74443"
      unitRef="pure">0.1062</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributions_01"
      id="ixv-16041">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74444"
      unitRef="pure">0.1739</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74445"
      unitRef="pure">0.0893</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributions_10"
      decimals="4"
      id="ixv-74446"
      unitRef="pure">0.0930</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-16056">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74447"
      unitRef="pure">0.1058</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74448"
      unitRef="pure">0.0784</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Cid_C000244838_AfterTaxesOnDistributionsAndSales_10"
      decimals="4"
      id="ixv-74449"
      unitRef="pure">0.0834</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081807_Indexid_RS002_contentCd_EIE-PRO_01"
      id="ixv-16072">Russell 2000&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Indexid_RS002_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74450"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Indexid_RS002_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74451"
      unitRef="pure">0.0609</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Indexid_RS002_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74452"
      unitRef="pure">0.0962</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000081807_Indexid_RS003_contentCd_EIE-PRO_01"
      id="ixv-16097">Russell 3000&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Indexid_RS003_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74453"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Indexid_RS003_contentCd_EIE-PRO_05"
      decimals="4"
      id="ixv-74454"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000081807_Indexid_RS003_contentCd_EIE-PRO_10"
      decimals="4"
      id="ixv-74455"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16165">Fund Summary
Fund:
Fidelity&#xae; Enhanced Small Cap Growth ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16175">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16179">Fidelity&#xae; Enhanced Small Cap Growth ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16183">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16185">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16195">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74456"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16207">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000102552_Cid_C000273054"
      decimals="6"
      id="ixv-74457"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000102552_Cid_C000273054"
      decimals="6"
      id="ixv-74458"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000102552_Cid_C000273054"
      decimals="6"
      id="footnoteS000102552EIE-PROAOE_AC000273054_OE"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000102552_Cid_C000273054"
      decimals="6"
      id="ixv-74460"
      unitRef="pure">0.0028</oef:ExpensesOverAssets>
    <oef:OtherExpensesNewFundBasedOnEstimates
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16258">Based on estimated amounts for the current fiscal year.</oef:OtherExpensesNewFundBasedOnEstimates>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16263">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000102552_Cid_C000273054"
      decimals="0"
      id="ixv-74461"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000102552_Cid_C000273054"
      decimals="0"
      id="ixv-74462"
      unitRef="usd">90</oef:ExpenseExampleYear03>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16304">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16308">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. For the period from April 28, 2026 to June 30, 2026, the fund's portfolio turnover rate was 42% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74463"
      unitRef="pure">0.42</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16312">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16315">
Normally investing at least 80% of assets in common stocks included in the Russell 2000&#xae; Growth Index.
The Russell 2000&#xae; Growth Index is a market capitalization-weighted index designed to measure the performance of the small-cap growth segment of the U.S. equity market. It includes those Russell 2000&#xae; Index companies with higher price-to-book ratios and higher forecasted growth rates.
The Russell 2000&#xae; Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 2000&#xae; Growth Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-16338">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-16344">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-16352">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-16362">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_GrowthInvestingMember"
      id="ixv-16368">"Growth" Investing.
 "Growth" stocks can perform differently from the market as a whole and other types of stocks and can be more volatile than other types of stocks.&#160; &#160; &#160;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-16375">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_SmallCapInvestingMember"
      id="ixv-16381">Small Cap Investing.
The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-16388">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-16391">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16395">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16398">
Performance history will be available for the fund after the fund has been in operation for one calendar year.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Pid_S000102552_contentCd_EIE-PRO"
      id="ixv-16400">Performance history will be available for the fund after the fund has been in operation for one calendar year.</oef:PerformanceOneYearOrLess>
    <oef:RiskReturnHeading
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16433">Fund Summary
Fund:
Fidelity&#xae; Enhanced Small Cap Value ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16443">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16447">Fidelity&#xae; Enhanced Small Cap Value ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16451">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16453">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16463">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74464"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16475">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000102553_Cid_C000273055"
      decimals="6"
      id="ixv-74465"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000102553_Cid_C000273055"
      decimals="6"
      id="ixv-74466"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000102553_Cid_C000273055"
      decimals="6"
      id="footnoteS000102553EIE-PROAOE_AC000273055_OE"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000102553_Cid_C000273055"
      decimals="6"
      id="ixv-74468"
      unitRef="pure">0.0028</oef:ExpensesOverAssets>
    <oef:OtherExpensesNewFundBasedOnEstimates
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16526">Based on estimated amounts for the current fiscal year.</oef:OtherExpensesNewFundBasedOnEstimates>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16531">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000102553_Cid_C000273055"
      decimals="0"
      id="ixv-74469"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000102553_Cid_C000273055"
      decimals="0"
      id="ixv-74470"
      unitRef="usd">90</oef:ExpenseExampleYear03>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16572">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16576">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. For the period from April 28, 2026 to June 30, 2026, the fund's portfolio turnover rate was 36% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74471"
      unitRef="pure">0.36</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16580">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16583">
Normally investing at least 80% of assets in common stocks included in the Russell 2000&#xae; Value Index.
The Russell 2000&#xae; Value Index is a market capitalization-weighted index designed to measure the performance of the small-cap value segment of the U.S. equity market. It includes those Russell 2000&#xae; Index companies with lower price-to-book ratios and lower forecasted growth rates.
The Russell 2000&#xae; Value Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 2000&#xae; Value Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-16606">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-16612">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-16620">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-16630">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_ValueInvestingMember"
      id="ixv-16636">"Value" Investing.
"Value" stocks can perform differently from the market as a whole and other types of stocks and can continue to be undervalued by the market for long periods of time.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-16642">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_SmallCapInvestingMember"
      id="ixv-16648">Small Cap Investing.
The value of securities of smaller, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-16655">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-16658">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16662">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16665">
Performance history will be available for the fund after the fund has been in operation for one calendar year.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Pid_S000102553_contentCd_EIE-PRO"
      id="ixv-16667">Performance history will be available for the fund after the fund has been in operation for one calendar year.</oef:PerformanceOneYearOrLess>
    <oef:RiskReturnHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16700">Fund Summary
Fund:
Fidelity&#xae; Enhanced U.S. All-Cap Equity ETF
</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16710">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16714">Fidelity&#xae; Enhanced U.S. All-Cap Equity ETF seeks capital appreciation.</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16718">Fee Table</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16720">
The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16730">Shareholder fees</oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      decimals="0"
      id="ixv-74472"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16742">Annual Operating Expenses</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="6"
      id="ixv-74473"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="6"
      id="ixv-74474"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="6"
      id="ixv-74475"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="6"
      id="ixv-74476"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16788">This example helps compare the cost of investing in the fund with the cost of investing in other funds.
Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="0"
      id="ixv-74477"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="0"
      id="ixv-74478"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="0"
      id="ixv-74479"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000087779_Cid_C000253741"
      decimals="0"
      id="ixv-74480"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16847">Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16851">The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 66% of the average value of its portfolio.</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74481"
      unitRef="pure">0.66</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16855">Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16858">
Normally investing at least 80% of assets in U.S. equity securities.
Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics.
The Adviser considers a number of factors to determine whether an issuer is located in or tied economically to a particular country or region including: whether a third-party vendor has assigned a particular country or region classification to the issuer or included the issuer in an index representative of a particular country or region; the issuer's domicile, incorporation, and location of assets; whether the issuer derives at least 50% of its revenues from, or has at least 50% of its assets in, a particular country or region; the source of government guarantees (if any); and the primary trading market or listing exchange. Whether an issuer is located in or tied economically to a particular country can be determined under any of these factors.
Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives.
Normally investing primarily in common stocks.Investing assets across market cap ranges in large cap, mid cap, and small cap stocks.Generally utilizing a research-driven approach identifying long-term drivers of stock returns that may include, but are not limited to, valuation, growth, quality, and other factors.&#160; The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of stocks that may have the potential to provide a higher total return than that of the Russell 3000&#xae; Index.
</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-16879">Stock Market Volatility.
Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-16885">Issuer-Specific Changes.
The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.
Changes in the financial condition of an issuer or counterparty (e.g., broker-dealer or other borrower in a securities lending transaction) can increase the risk of default by an issuer or counterparty, which can affect a security's or instrument's value or result in delays in recovering securities and/or capital from a counterparty.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-16893">Fluctuation of Net Asset Value and Share Price.
The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV.
Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs.
In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-16903">Trading Issues.
There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-16909">Quantitative Investing.
Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_SmallAndMidCapInvestingMember"
      id="ixv-16915">Small- and Mid-Cap Investing.
The value of securities of small to medium size, less well-known issuers can perform differently from the market as a whole and other types of stocks and can be more volatile than that of larger issuers.
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-16922">An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-16925">&#160;You could lose money by investing in the fund.</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16929">Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16932">
The following information is intended to help you understand the risks of investing in the fund.
The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time. The index description appears in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance.
Visit www.fidelity.com for more recent performance information.
</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16936">The information illustrates the performance of the fund's shares over the past year and compares the performance of the fund's shares to the performance of a securities market index over various periods of time.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16939">Past performance (before and after taxes) is not an indication of future performance.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16943"> www.fidelity.com </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-16950">Year-by-Year Returns </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_2025"
      decimals="INF"
      id="ixv-74482"
      unitRef="pure">0.1789</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17027"> &#160;&#160;&#160;Highest Quarter Return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74483"
      unitRef="pure">0.1123</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17037">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17042"> &#160;&#160;&#160;Lowest Quarter Return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74484"
      unitRef="pure">-0.0446</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17053">2025-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17058"> &#160;&#160;&#160;Year-to-Date Return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      decimals="4"
      id="ixv-74485"
      unitRef="pure">0.1383</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17068">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17072">Average Annual Returns</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17076">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17077">After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17080"> The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000087779_contentCd_EIE-PRO"
      id="ixv-17082"> Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.</oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087779_Cid_C000253741_ReturnBeforeTaxes_01"
      id="ixv-17120">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74486"
      unitRef="pure">0.1789</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEIE-PROS000087779AAR_A_RBT_loc"
      unitRef="pure">0.1500</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087779_Cid_C000253741_AfterTaxesOnDistributions_01"
      id="ixv-17133">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74488"
      unitRef="pure">0.1760</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEIE-PROS000087779AAR_A_ATD_loc"
      unitRef="pure">0.1472</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087779_Cid_C000253741_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-17146">Return After Taxes on Distributions and Sale of Fund Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74490"
      unitRef="pure">0.1076</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Cid_C000253741_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteEIE-PROS000087779AAR_A_ATDS_loc"
      unitRef="pure">0.1142</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000087779_Indexid_RS003_contentCd_EIE-PRO_01"
      id="ixv-17160">Russell 3000&#xae; Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Indexid_RS003_contentCd_EIE-PRO_01"
      decimals="4"
      id="ixv-74492"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000087779_Indexid_RS003_contentCd_EIE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74493"
      unitRef="pure">0.1444</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000087779_Cid_C000253741" id="ixv-17190">2024-11-19</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-26951">
     
       
     Fund Summary 
       
     Fund: 
     
      
     Fidelity&#xae; CLO ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-26962">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-26967">
     
       
     Fidelity 
      
       
     &#xae; CLO ETF seeks to generate income. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-26974">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-26980">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-26991">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      decimals="0"
      id="ixv-74494"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27006">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="6"
      id="ixv-74495"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="6"
      id="ixv-74496"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="6"
      id="ixv-74497"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="6"
      id="ixv-74498"
      unitRef="pure">0.0045</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27054">
     
       
      
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="0"
      id="ixv-74499"
      unitRef="usd">46</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="0"
      id="ixv-74500"
      unitRef="usd">144</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="0"
      id="ixv-74501"
      unitRef="usd">252</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000099376_Cid_C000269152"
      decimals="0"
      id="ixv-74502"
      unitRef="usd">567</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27113">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27118">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. For the period from February 10, 2026 to August 31, 2026, the fund's portfolio turnover rate was 
       
     
       
       46 
       
       
     % (annualized) of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      decimals="4"
      id="ixv-74503"
      unitRef="pure">0.46</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27127">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27132">
     
       
      
       
        Normally investing at least 80% of assets in collateralized loan obligations (CLOs). 
      
     CLOs are a type of asset-backed security. A CLO is typically collateralized by a pool of loans, which may include domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans, and including "covenant lite" loans, which have few or no financial maintenance covenants. CLOs may charge management fees and other expenses. Cash flows from the CLO are split into two or more portions, called tranches, which can vary in risk and yield. A CLO's more senior tranches are partially protected from defaults, typically have higher ratings and lower yields than their underlying securities and can be rated investment grade. More junior tranches offer the potential for higher yield but are more exposed to loss and have lower ratings. 
     Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      
      Investing a majority of the fund's assets in CLOs rated from BBB+ to B- or the equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
      Investing up to 30% of the fund's assets in CLOs rated above BBB+. 
      Purchasing CLOs in both the primary market and the secondary market. 
      Investing no more than 10% of assets in fixed-rate CLOs. 
      Investing up to 25% in non-U.S. dollar-denominated CLOs and, from time to time, hedging the fund's foreign currency exposures utilizing forward foreign currency exchange contracts. 
      Investing in cash or other short-term instruments, such as money market instruments or money market funds, while seeking to deploy new capital, or for liquidity management purposes, managing redemptions, or for defensive purposes, including navigating unusual market conditions. 
      Investing up to 20% of the fund's net assets in securities that have a leveraging effect on the fund, including investments in derivatives - such as swaps (interest rate, total return, and credit default), options, and futures contracts - to adjust the fund's risk exposure - as well as forward foreign currency exchange contracts for both hedging and non-hedging purposes. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_CollateralizedLoanObligationsRiskMember"
      id="ixv-27160">
     
       
      
      Collateralized Loan Obligations Risk. 
      
     The risks of investing in a CLO can be generally summarized as a combination of economic risks of the underlying loans and the risks associated with the CLO structure governing the priority of payments. The risks of investing in CLOs depend largely on the type of the collateral securities and the tranche of the CLO. In stressed market conditions, it is possible that even senior CLO debt tranches could experience losses due to actual defaults, downgrades of the underlying collateral by rating agencies, forced liquidation of the collateral pool due to a failure of coverage tests, increased sensitivity to defaults due to collateral default and the disappearance of protecting tranches, market anticipation of defaults as well as investor aversion to CLO securities as an asset class. To the extent that the fund invests in unrated CLO tranches, the fund's ability to achieve its investment objective will be more dependent on the Adviser's credit analysis than would be the case when the fund invests in rated CLO tranches. The Adviser may not be able to accurately predict how specific CLOs or the portfolio of underlying loans for such CLOs will react to changes or stresses in the market, including changes in interest rates. 
     CLOs, and their underlying loan obligations, are typically not registered for sale to the public and therefore are subject to certain restrictions on transfer and sale, potentially making them less liquid than other types of securities. Because there may be relatively few potential purchasers for such securities, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the fund may find it more difficult to sell such securities when it may be advisable to do so or it may be able to sell such securities only at prices lower than if such securities were more widely held and traded. At times, it also may be more difficult to determine the fair value of such securities for purposes of computing the fund's net asset value due to the absence of an active trading market. &#160; 
     Additionally, newly issued CLO securities purchased in the primary market typically experience delayed or extended settlement periods, possibly longer than seven days. In the period following a purchase of CLO securities in the primary market and prior to settlement, these CLO securities may be considered less liquid than similar CLOs available in the secondary market. In such circumstances the fund bears a risk of loss if the value of the CLO declines before the settlement date or if the fund is required to sell the CLO security prior to settlement. There is also the risk that the security will not be issued or that the counterparty will not meet its obligation, resulting in a loss of the investment opportunity. The proceeds from the sale of CLO securities may not be readily available to make additional investments or to meet the fund's redemption obligations. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_MezzanineCloRiskMember"
      id="ixv-27174">
     
       
      
      Mezzanine CLO Risk. 
      
     CLO tranches rated from BBB+ to B- are often subordinate to higher-rated tranches in terms of payment priority. Subordinated (i.e., mezzanine) CLO tranches are subject to higher credit risk and liquidity risk relative to more senior CLO tranches. To the extent a CLO or its underlying loans experience default or are having difficulty making principal and/or interest payments, such subordinate CLO tranches will be more likely to experience adverse impacts, and such impacts will be more severe, relative to more senior and/or higher-rated CLO securities, which in turn will adversely affect the performance of the fund. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_CloManagerRiskMember"
      id="ixv-27183">
     
       
      
      CLO Manager Risk. 
      
     The CLOs in which the fund invests are managed by investment advisers independent of the Adviser. CLO managers are responsible for selecting, managing and replacing the underlying bank loans or bonds within a CLO. CLO managers may have limited operating histories and may be subject to conflicts of interests, including managing the assets of other clients or other investment vehicles, or receiving fees that incentivize maximizing the yield, and indirectly the risk, of a CLO. Adverse developments with respect to a CLO manager, such as personnel and resource constraints, regulatory issues or other developments that may impact the ability and/or performance of the CLO manager, may adversely impact the performance of the CLO securities in which the fund invests. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_ImpairmentOfCollateralMember"
      id="ixv-27192">
     
       
      
      Impairment of Collateral. 
      
     A floating rate loan may not be fully collateralized which may cause the floating rate loan to decline significantly in value. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_FloatingRateLoanLiquidityMember"
      id="ixv-27201">
     
       
      
      Floating Rate Loan Liquidity. 
      
     Floating rate loans generally are subject to restrictions on resale. Floating rate loans sometimes trade infrequently in the secondary market. As a result, valuing a floating rate loan can be more difficult, and buying and selling a floating rate loan at an acceptable price can be more difficult or delayed, including extended trade settlement periods. Difficulty in selling a floating rate loan can result in a loss. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-27210">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_ForeignExposureMember"
      id="ixv-27219">
     
       
      
      Foreign Exposure. 
      
     Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_ForeignCurrencyTransactionsMember"
      id="ixv-27228">
     
       
      
      Foreign Currency Transactions. 
      
     Although a forward foreign currency exchange contract is used to reduce or hedge a fund's exposure to changes in the value of the currency, suitable hedging transactions may not be available in all circumstances, may not be successful, and may eliminate any chance for the fund to benefit from favorable fluctuations in relevant foreign currencies. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_PrepaymentMember"
      id="ixv-27237">
     
       
      
      Prepayment. 
      
     The ability of an issuer of a debt security to repay principal prior to a security's maturity can cause greater price volatility if interest rates change and can limit the potential for gains when the credit quality of the issuer improves. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-27246">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     A decline in the credit quality of an issuer or a provider of credit support (such as guarantees) or a maturity-shortening structure (such as demand and put features) for a security can cause the price of a security to decrease. 
     Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. 
     The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell. 
     Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-27263">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_TradingIssuesMember"
      id="ixv-27278">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_LeverageRiskMember"
      id="ixv-27287">
     
       
      
      Leverage Risk. 
      
     Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_CashTransactionsRiskMember"
      id="ixv-27296">
     
       
      
      Cash Transactions Risk. 
      
     Unlike certain ETFs, the fund may effect some or all creations and redemptions using cash, rather than in-kind securities. As a result, an investment in the fund may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_RiskNondiversifiedStatusMember"
      id="ixv-27306">
     
       
     In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-27311">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-27319">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27328">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27333">
     
       
      
       
      
        
      Performance history will be available for the fund after the fund has been in operation for one calendar year. 
        
      
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Pid_S000099376_contentCd_CLO-PRO"
      id="ixv-27337"> 
        
      Performance history will be available for the fund after the fund has been in operation for one calendar year. 
        
     </oef:PerformanceOneYearOrLess>
    <oef:RiskReturnHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28438">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Enhanced High Yield ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28447">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28452">
     
       
     Fidelity&#xae; Enhanced High Yield ETF seeks a high level of income. The fund may also seek capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28457">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28463">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28474">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      decimals="0"
      id="ixv-74504"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28489">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="6"
      id="ixv-74505"
      unitRef="pure">0.0035</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="6"
      id="ixv-74506"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="6"
      id="ixv-74507"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="6"
      id="ixv-74508"
      unitRef="pure">0.0035</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28536">
     
       
      
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="0"
      id="ixv-74509"
      unitRef="usd">36</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="0"
      id="ixv-74510"
      unitRef="usd">113</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="0"
      id="ixv-74511"
      unitRef="usd">197</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000062078_Cid_C000201027"
      decimals="0"
      id="ixv-74512"
      unitRef="usd">443</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28594">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28599">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       55 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      decimals="4"
      id="ixv-74513"
      unitRef="pure">0.55</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28608">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28613">
     
       
      
       
        Normally investing at least 80% of assets in debt securities rated below investment grade (also referred to as high yield debt securities or junk bonds). 
      
     Debt securities are used by issuers to borrow money. The issuer usually pays a fixed, variable, or floating rate of interest, and must repay the amount borrowed, usually at the maturity of the security. Debt securities include corporate bonds, government securities (including Treasury securities), repurchase agreements, money market securities, mortgage and other asset-backed securities, loans and loan participations, and other securities, such as hybrids and synthetic securities, believed to have debt-like characteristics (e.g., securities classified as Tier 2 Regulatory capital, securities that rank above share capital in an insolvency waterfall, securities with maturity dates and non-cancellable interest payment structures).&#160; 
     Below investment grade debt securities are debt securities that are rated below BBB- or its equivalent by at least one nationally recognized statistical ratings organization (NRSRO), or, if unrated, determined by the Adviser to be of comparable quality. 
     Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      
      Using the ICE&#xae; BofA&#xae; BB-B US High Yield Constrained Index as a guide in structuring the fund and selecting its investments as it relates to credit quality distribution and risk characteristics. 
      Normally investing primarily in securities rated BB or B by Standard &amp; Poor's (S&amp;P), Ba or B by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management &amp; Research Company LLC (FMR) to be of comparable quality. 
      Potentially investing in securities that have a higher or lower credit quality. 
      Investing in companies in troubled or uncertain financial condition. 
      Investing in domestic and foreign issuers. 
      Generally utilizing a research-driven approach identifying long-term drivers of high yield debt security returns that may include, but are not limited to, valuation, quality, momentum, and other factors. The research is systematically applied alongside a proprietary portfolio construction and risk management framework to select a broadly diversified group of high yield debt securities that may have the potential to provide a higher total return than that of the ICE&#xae; BofA BB-B US High Yield Constrained Index. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-28646">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_ForeignExposureMember"
      id="ixv-28655">
     
       
      
      Foreign Exposure. 
      
     Foreign markets, particularly emerging markets, can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-28664">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. 
     The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments and can be difficult to resell. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-28677">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_TradingIssuesMember"
      id="ixv-28692">
     
       
      
      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_CashTransactionsRiskMember"
      id="ixv-28701">
     
       
      
      Cash Transactions Risk. 
      
     Unlike certain ETFs, the fund may effect some or all creations and redemptions using cash, rather than in-kind securities. As a result, an investment in the fund may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_QuantitativeInvestingMember"
      id="ixv-28710">
     
       
      
      Quantitative Investing. 
      
     Securities selected using quantitative analysis can perform differently from the market as a whole as a result of the factors used in the analysis, the weight placed on each factor, and changes in the factors' historical trends. 
      
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_RiskNotInsuredDepositoryInstitutionMember"
      id="ixv-28720">
     
       
     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO_RiskMember_RiskLoseMoneyMember"
      id="ixv-28728">
     
       
     &#160; 
       
     You could lose money by investing in the fund. 
       
    
   </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28735">
     
       
     Performance 
       
    
   </oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28740">
     
       
     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
      
       
     The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
   </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28745"> 
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. 
        
     </oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28752"> 
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
     </oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28758"> 
        
      www.fidelity.com  
     </oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28763">
     
       
     Year-by-Year Returns  
    
   </oef:BarChartHeading>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2019"
      decimals="INF"
      id="ixv-74514"
      unitRef="pure">0.1754</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2020"
      decimals="INF"
      id="ixv-74515"
      unitRef="pure">0.1064</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2021"
      decimals="INF"
      id="ixv-74516"
      unitRef="pure">0.0469</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2022"
      decimals="INF"
      id="ixv-74517"
      unitRef="pure">-0.1158</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2023"
      decimals="INF"
      id="ixv-74518"
      unitRef="pure">0.1164</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2024"
      decimals="INF"
      id="ixv-74519"
      unitRef="pure">0.0749</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_2025"
      decimals="INF"
      id="ixv-74520"
      unitRef="pure">0.0902</oef:AnnlRtrPct>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28864">
          &#160;&#160;&#160;Highest Quarter Return
        </oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      decimals="4"
      id="ixv-74521"
      unitRef="pure">0.1091</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28874">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28879">
          &#160;&#160;&#160;Lowest Quarter Return
        </oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      decimals="4"
      id="ixv-74522"
      unitRef="pure">-0.1036</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28890">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28895">
          &#160;&#160;&#160;Year-to-Date Return
        </oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      decimals="4"
      id="ixv-74523"
      unitRef="pure">0.0156</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28905">2026-09-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28910">
     
       
     Average Annual Returns 
       
    
   </oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28915">
     
       
      
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
   </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28918"> 
        
      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
     </oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28925"> 
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
     </oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableExplanationAfterTaxHigher
      contextRef="Pid_S000062078_contentCd_HIE-PRO"
      id="ixv-28930"> 
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
     </oef:PerformanceTableExplanationAfterTaxHigher>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000062078_Cid_C000201027_ReturnBeforeTaxes_01"
      id="ixv-28976">
         Return Before Taxes
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_ReturnBeforeTaxes_01"
      decimals="4"
      id="ixv-74524"
      unitRef="pure">0.0902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_ReturnBeforeTaxes_05"
      decimals="4"
      id="ixv-74525"
      unitRef="pure">0.0390</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_ReturnBeforeTaxes_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteHIE-PROS000062078AAR_A_RBT_loc"
      unitRef="pure">0.0589</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributions_01"
      id="ixv-28992">
         Return After Taxes on Distributions
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributions_01"
      decimals="4"
      id="ixv-74527"
      unitRef="pure">0.0611</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributions_05"
      decimals="4"
      id="ixv-74528"
      unitRef="pure">0.0133</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributions_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteHIE-PROS000062078AAR_A_ATD_loc"
      unitRef="pure">0.0337</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributionsAndSales_01"
      id="ixv-29008">
         Return After Taxes on Distributions and Sale of Fund Shares
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributionsAndSales_01"
      decimals="4"
      id="ixv-74530"
      unitRef="pure">0.0527</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributionsAndSales_05"
      decimals="4"
      id="ixv-74531"
      unitRef="pure">0.0183</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Cid_C000201027_AfterTaxesOnDistributionsAndSales_AverageAnnualReturnSinceInception"
      decimals="4"
      id="footnoteHIE-PROS000062078AAR_A_ATDS_loc"
      unitRef="pure">0.0343</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000062078_Indexid_ML100_contentCd_HIE-PRO_01"
      id="ixv-29025">
         ICE&#xae; BofA&#xae; BB-B US High Yield Constrained Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Indexid_ML100_contentCd_HIE-PRO_01"
      decimals="4"
      id="ixv-74533"
      unitRef="pure">0.0873</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Indexid_ML100_contentCd_HIE-PRO_05"
      decimals="4"
      id="ixv-74534"
      unitRef="pure">0.0411</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Indexid_ML100_contentCd_HIE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74535"
      unitRef="pure">0.0520</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Pid_S000062078_Indexid_LB091_contentCd_HIE-PRO_01"
      id="ixv-29050">
         Bloomberg U.S. Universal Bond Index
        </oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Indexid_LB091_contentCd_HIE-PRO_01"
      decimals="4"
      id="ixv-74536"
      unitRef="pure">0.0758</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Indexid_LB091_contentCd_HIE-PRO_05"
      decimals="4"
      id="ixv-74537"
      unitRef="pure">0.0006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Pid_S000062078_Indexid_LB091_contentCd_HIE-PRO_AverageAnnualReturnSinceInception"
      decimals="4"
      id="ixv-74538"
      unitRef="pure">0.0245</oef:AvgAnnlRtrPct>
    <oef:AnnualReturnInceptionDate contextRef="Pid_S000062078_Cid_C000201027" id="ixv-29091">2018-06-12</oef:AnnualReturnInceptionDate>
    <oef:RiskReturnHeading
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29124">
     
       
     Fund Summary 
       
     Fund: 
     Fidelity&#xae; Preferred Securities &amp; Income ETF 
    
   </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29133">
     
       
     Investment Objective 
       
    
   </oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29138">
     
       
     Fidelity&#xae; Preferred Securities &amp; Income ETF seeks high total return through a combination of current income and capital appreciation. 
       
    
   </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29143">
     
       
     Fee Table 
       
    
   </oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29149">
     
       
     The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. 
    
   </oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29160">
     
       
     Shareholder fees 
       
    
   </oef:ShareholderFeesCaption>
    <oef:ShareholderFeeOther
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      decimals="0"
      id="ixv-74539"
      unitRef="usd">0</oef:ShareholderFeeOther>
    <oef:OperatingExpensesCaption
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29175">
     
       
     Annual Operating Expenses 
       
    
   </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="6"
      id="ixv-74540"
      unitRef="pure">0.0059</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="6"
      id="ixv-74541"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="6"
      id="ixv-74542"
      unitRef="pure">0.0000</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="6"
      id="ixv-74543"
      unitRef="pure">0.0059</oef:ExpensesOverAssets>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29222">
     
       
     This  
     example 
       
     helps compare the cost of investing in the fund with the cost of investing in other funds. 
       
     Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 
    
   </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="0"
      id="ixv-74544"
      unitRef="usd">60</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="0"
      id="ixv-74545"
      unitRef="usd">189</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="0"
      id="ixv-74546"
      unitRef="usd">329</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Pid_S000072125_Cid_C000227886"
      decimals="0"
      id="ixv-74547"
      unitRef="usd">738</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29279">
     
       
     Portfolio Turnover 
       
    
   </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29284">
     
       
     The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 
       
     
       
       19 
       
       
     % of the average value of its portfolio. 
       
    
   </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      decimals="4"
      id="ixv-74548"
      unitRef="pure">0.19</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29293">
     
       
     Principal Investment Strategies 
       
    
   </oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO"
      id="ixv-29298">
     
       
      
       
        Normally investing at least 80% of assets in preferred securities and other income-producing securities. 
      
     Preferred securities include preferred stock, hybrid or trust preferred securities, fixed and floating rate preferred securities, listed and unlisted preferred securities, and preferred securities of all par values. 
     Income-producing securities are securities that pay, or are expected to pay within the next three months, dividends or interest. 
     Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. 
      
      Normally investing in all types of preferred securities and other income-producing securities such as contingent convertible securities and corporate hybrid securities. 
      Normally investing primarily in securities rated at least BB by Standard &amp; Poor's (S&amp;P), Ba by Moody's Investors Service (Moody's), comparably rated by at least one nationally recognized credit rating agency, or, if unrated, considered by Fidelity Management &amp; Research Company LLC (FMR) to be of comparable quality. Securities rated below BBB by S&amp;P and below Baa3 by Moody's are less than investment-grade quality (also referred to as high yield debt securities or junk bonds). 
      Investing in securities of domestic and foreign issuers. 
      Using fundamental analysis of each issuer's financial condition and industry position and market and economic conditions to select investments. 
      Concentrating investments in securities of issuers principally engaged in the business activities of the industries in the financial services sector. 
      
    
   </oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_PreferredSecuritiesMember"
      id="ixv-29324">
     
       
      
      Preferred Securities. 
      
     Because preferred securities have a lower priority claim on assets or earnings than senior debt instruments in an issuer's capital structure, they are subject to greater credit and liquidation risk than more senior debt instruments. In addition, preferred securities are subject to other risks, such as limited or no voting rights, deferring or skipping distributions, floating interest rates or distributions, interest rate risk, and the issuer having the right to redeem the security prior to any stated maturity date. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_StockMarketVolatilityMember"
      id="ixv-29333">
     
       
      
      Stock Market Volatility. 
      
     Stock markets and, as a result, stock market indexes, are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_InterestRateChangesMember"
      id="ixv-29342">
     
       
      
      Interest Rate Changes. 
      
     Interest rate increases can cause the price of a debt security to decrease. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_ForeignExposureMember"
      id="ixv-29351">
     
       
      
      Foreign Exposure. 
      
     Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_FinancialsIndustryConcentrationMember"
      id="ixv-29360">
     
       
      
      Financials Industry Concentration. 
      
     The financials industries are subject to extensive government regulation, can be subject to relatively rapid change due to increasingly blurred distinctions between service segments, and can be significantly affected by availability and cost of capital funds, changes in interest rates, the rate of corporate and consumer debt defaults, and price competition. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_IssuerSpecificChangesMember"
      id="ixv-29369">
     
       
      
      Issuer-Specific Changes. 
      
     The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. 
     Lower-quality debt securities (those of less than investment-grade quality, also referred to as high yield debt securities or junk bonds) and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. 
     The value of lower-quality debt securities and certain types of other securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market, or economic developments. 
     Investments in covenant-lite loans carry more risk than traditional loans as they allow issuers to engage in activities that would otherwise be difficult or impossible under a traditional loan agreement. In the event of default, covenant-lite obligations have lower recovery values as the lender may not have the opportunity to negotiate with the borrower prior to default. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_FluctuationOfNetAssetValueAndSharePriceMember"
      id="ixv-29384">
     
       
      
      Fluctuation of Net Asset Value and Share Price. 
      
     The net asset value per share (NAV) of the fund will generally fluctuate with changes in the market value of the fund's holdings. The fund's shares can be bought and sold in the secondary market at market prices. Disruptions to creations and redemptions, the existence of extreme market volatility or potential lack of an active trading market for the fund's shares may result in the fund's shares trading significantly above (at a premium) or below (at a discount) to NAV. 
     Given the nature of the relevant markets for certain of the fund's securities, shares may trade at a larger premium or discount to the NAV than shares of other ETFs. 
     In addition, in stressed market conditions or periods of market disruption or volatility,&#160;the market for shares may become less liquid in response to deteriorating liquidity in the markets for the fund's underlying portfolio holdings. 
    
   </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Pid_S000072125_contentCd_HIE-PRO_RiskMember_ContingentConvertibleSecuritiesRiskMember"
      id="ixv-29399">
     
       
      
      Contingent Convertible Securities Risk. 
      
     Contingent convertible securities have unique equity conversion or principal write-down features that involve additional risks, which may include cancellation of interest payments by the issuer or a regulatory authority; subordination to other creditors due to either a liquidation or other bankruptcy-related event or a conversion of the security from debt to equity; and a write-down of the security's principal amount. 
    
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      Trading Issues. 
      
     There can be no assurance that an active trading market will be maintained. Market makers and Authorized Participants are not obligated to make a market in the fund's shares or to submit purchase and redemption orders for creation units. Decisions by market makers or Authorized Participants to reduce their role with respect to market making or creation and redemption activities during times of market stress, or a decline in the number of Authorized Participants due to decisions to exit the business, bankruptcy, or other factors, could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the market price of fund shares. In addition, trading may be halted, for example, due to market conditions. 
    
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      Cash Transactions Risk. 
      
     Unlike certain ETFs, the fund may effect some or all creations and redemptions using cash, rather than in-kind securities. As a result, an investment in the fund may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind. 
      
       
    
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     An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency 
       
     . 
       
    
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     &#160; 
       
     You could lose money by investing in the fund. 
       
    
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     Performance 
       
    
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     The following information is intended to help you understand the risks of investing in the fund. 
      
        
      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and additional indexes over various periods of time. 
        
      
       
     The additional indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. 
       
      
        
      Past performance (before and after taxes) is not an indication of future performance. 
        
      
     Visit 
       
      
        
      www.fidelity.com  
      
       
     for more recent performance information. 
    
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      The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and additional indexes over various periods of time. 
        
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      Past performance (before and after taxes) is not an indication of future performance. 
        
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      www.fidelity.com  
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     Year-by-Year Returns  
    
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    <oef:AnnlRtrPct
      contextRef="Pid_S000072125_Cid_C000227886_2022"
      decimals="INF"
      id="ixv-74549"
      unitRef="pure">-0.1699</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000072125_Cid_C000227886_2023"
      decimals="INF"
      id="ixv-74550"
      unitRef="pure">0.1109</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="Pid_S000072125_Cid_C000227886_2024"
      decimals="INF"
      id="ixv-74551"
      unitRef="pure">0.0873</oef:AnnlRtrPct>
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      contextRef="Pid_S000072125_Cid_C000227886_2025"
      decimals="INF"
      id="ixv-74552"
      unitRef="pure">0.0613</oef:AnnlRtrPct>
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          &#160;&#160;&#160;Highest Quarter Return
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      contextRef="Pid_S000072125_contentCd_HIE-PRO"
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      contextRef="Pid_S000072125_contentCd_HIE-PRO"
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          &#160;&#160;&#160;Lowest Quarter Return
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      contextRef="Pid_S000072125_contentCd_HIE-PRO"
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      contextRef="Pid_S000072125_contentCd_HIE-PRO"
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          &#160;&#160;&#160;Year-to-Date Return
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     Average Annual Returns 
       
    
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      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
      
       
     Actual after-tax returns may differ depending on your individual circumstances. 
       
      
        
      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
      
       
      
        
      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
      
       
    
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      After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. 
        
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      The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). 
        
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    <oef:PerformanceTableExplanationAfterTaxHigher
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      Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. 
        
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         Return Before Taxes
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         Return After Taxes on Distributions
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          xlink:from="footnoteS000102550EIE-PROAOE_AC000273052_OE"
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        <link:loc
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        <link:footnote id="footnoteS000102551EIE-PROAOE_A" xlink:label="footnoteS000102551EIE-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">A</xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:normal;font-weight:normal;"><xhtml:span style="padding-right:10px"/></xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Based on estimated amounts for the current fiscal year.</xhtml:span></link:footnote>
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        <link:footnote id="footnoteS000102552EIE-PROAOE_A" xlink:label="footnoteS000102552EIE-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">A</xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:normal;font-weight:normal;"><xhtml:span style="padding-right:10px"/></xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Based on estimated amounts for the current fiscal year.</xhtml:span></link:footnote>
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        <link:footnote id="footnoteS000102553EIE-PROAOE_A" xlink:label="footnoteS000102553EIE-PROAOE_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">A</xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:normal;font-weight:normal;"><xhtml:span style="padding-right:10px"/></xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Based on estimated amounts for the current fiscal year.</xhtml:span></link:footnote>
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        <link:footnote id="footnoteEIE-PROS000087779AAR_A" xlink:label="footnoteEIE-PROS000087779AAR_A" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">A</xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:italic;font-weight:normal;">From </xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:italic;font-weight:normal;">November 19, 2024</xhtml:span><xhtml:span style="font-family:'Fidelity Futura Std Book',Arial,Helvetica,sans-serif;font-size:11px;color:#000000;font-style:italic;font-weight:normal;">.</xhtml:span></link:footnote>
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        <link:loc
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